Electronic device and method for short range wireless communication in the electronic device

ABSTRACT

Disclosed are an electronic device and a method of short range wireless communication in an electronic device. The method of operating the electronic device may include: when a cover is connected to the electronic device through a short range wireless communication connection, determining generation of an event related to the cover. The method further comprises, when the event is generated, supplying power to the cover through wireless communication, when the cover is driven by the supplied power, transmitting event information to the cover through the short range wireless communication connection to display the information related to the generated event on the cover, and, when an operation of the cover according to the event is completed, switching to a standby mode after releasing the short range wireless communication connection with the cover.

CROSS-REFERENCE TO RELATED APPLICATIONS AND CLAIM OF PRIORITY

This application is a continuation of application Ser. No. 16/716,190,filed Dec. 16, 2019, which is a continuation of application Ser. No.16/036,429, filed Jul. 16, 2018, now U.S. Pat. No. 10,511,348, which isa continuation of application Ser. No. 15/411,908, filed Jan. 20, 2017,now U.S. Pat. No. 10,027,380, which claims priority to KoreanApplication Serial No. 10-2016-0007716, filed Jan. 21, 2016, thedisclosures of which are hereby incorporated by reference.

BACKGROUND 1. Field

The present disclosure relates to an electronic device and a method forshort range wireless communication in an electronic device.

2. Description of Related Art

Short range wireless communication may be used for many devices andservices and may be performed based on a tag technology in which a tagreceives wireless power. Accordingly, wireless power of short rangewireless communication used for neighboring devices may be charged.

SUMMARY

A short range wireless communication technology has been developed to atechnology that may provide various services through the supply ofwireless power to neighboring devices and communication with theneighboring devices.

However, in such a short range wireless communication technology,wireless power is charged in a separate neighboring device, theneighboring device is driven by the charged power, and a service isprovided through communication with the neighboring device. Further, theneighboring device that performs short range wireless communication withthe electronic device may use only the short range wirelesscommunication or may include a separate battery and drive or operatewith power supplied from the battery.

In addition, when the electronic device communicates with an externaldevice through short range wireless communication, power for the shortrange wireless communication is limited and the short range wirelesscommunication supports only one-to-one communication with the tag.Accordingly, in short range wireless communication in a tag type, theelectronic device has difficulty in performing another function.

When information provided by an accessory device such as a coverconnected to the electronic device is executed, much power is used.However, due to the characteristic of the accessory device connected tothe electronic device, the accessory device should be slim andimplemented in a simple form, so it is difficult to install a separatebattery. In order to resolve the difficulty, the electronic device mayprovide power to the accessory device through short range wirelesscommunication.

However, when the electronic device communicates with another externaldevice through short range wireless communication in the tag type, theshort range communication with the accessory device is blocked and thusthe electronic device has difficulty in supplying sufficient power tothe accessory device. Further, since the accessory device should waituntil the short range communication with the other device is completed,the accessory device has difficulty in smoothly receiving informationprovided by the electronic device.

To address the above-discussed deficiencies, it is a primary object toprovide an electronic device and a method by which an electronic devicesupplies wireless power to a neighboring device through short rangewireless communication and performs the short range wirelesscommunication with the neighboring device.

An electronic device according to one of various embodiments of thepresent disclosure to solve the aforementioned problems or otherproblems may include: a communication unit that communicates with acover connected to the electronic device through short range wirelesscommunication; and a controller, wherein the controller is configured todetermine generation of an event related to the cover, supply power tothe cover through wireless communication when the event is generated,make a control to transmit event information to the cover through theshort range wireless communication to display the event information onthe cover when the cover is driven by the supplied power, and switch toa standby mode after releasing a communication connection with the coverwhen an operation of the cover according to the event is completed.

A method of short range wireless communication in an electronic deviceaccording to one of various embodiments of the present disclosure mayinclude: when a cover is connected to the electronic device through ashort range wireless communication connection, determining generation ofan event related to the cover; when the event is generated, supplyingpower to the cover through wireless communication; when the cover isdriven by the supplied power, transmitting event information to thecover through the short range wireless communication connection todisplay the event information on the cover; and when an operation of thecover according to the event is completed, switching to a standby modeafter releasing the short range wireless communication connection withthe cover.

An accessory device according to one of various embodiments may includea housing including a first surface and a second surface facing anopposite side to the first surface; a combination structure connected tothe housing and making the second surface attachable to/detachable fromone surface of an external electronic device; a display formed on atleast a part of the first surface; and a control circuit disposed insidethe housing and electrically connected to the display. The controlcircuit may include a conductive pattern arranged inside the housingnear the second surface of the housing, the conductive patternconfigured to receive a magnetic flux generated from the one surface ofthe external electronic device or a transmitted signal, a power storagedevice configured to at least temporarily store power induced by themagnetic flux, and a memory device configured to temporarily store atleast a part of information included in the transmitted signal, and atleast a part of the display configured to be activated using at leastthe part of the information and the power.

According to an electronic device and a method in an electronic deviceaccording to various embodiments, power may be supplied to a coverconnected to an electronic device through short range wirelesscommunication, and the cover is driven. When the cover is driven, eventinformation may be transmitted to the cover and displayed on the cover.When an operation of the cover is completed, the electronic device mayenter a standby mode and recognize another external device.

Before undertaking the DETAILED DESCRIPTION below, it may beadvantageous to set forth definitions of certain words and phrases usedthroughout this patent document: the terms “include” and “comprise,” aswell as derivatives thereof, mean inclusion without limitation; the term“or,” is inclusive, meaning and/or; the phrases “associated with” and“associated therewith,” as well as derivatives thereof, may mean toinclude, be included within, interconnect with, contain, be containedwithin, connect to or with, couple to or with, be communicable with,cooperate with, interleave, juxtapose, be proximate to, be bound to orwith, have, have a property of, or the like; and the term “controller”means any device, system or part thereof that controls at least oneoperation, such a device may be implemented in hardware, firmware orsoftware, or some combination of at least two of the same. It should benoted that the functionality associated with any particular controllermay be centralized or distributed, whether locally or remotely.Definitions for certain words and phrases are provided throughout thispatent document, those of ordinary skill in the art should understandthat in many, if not most instances, such definitions apply to prior, aswell as future uses of such defined words and phrases.

BRIEF DESCRIPTION OF THE DRAWINGS

For a more complete understanding of the present disclosure and itsadvantages, reference is now made to the following description taken inconjunction with the accompanying drawings, in which like referencenumerals represent like parts:

FIG. 1 illustrates a network environment according to variousembodiments of the present disclosure;

FIG. 2 illustrates an example of a configuration of an electronic deviceand external devices within a network environment according to variousembodiments of the present disclosure;

FIG. 3 illustrates an example of a configuration of an electronic deviceaccording to various embodiments of the present disclosure;

FIG. 4 illustrates an example of a configuration of an electronic deviceaccording to various embodiments of the present disclosure;

FIG. 5 illustrates an example of a configuration of an electronic deviceaccording to various embodiments of the present disclosure;

FIG. 6 illustrates an example of an antenna configuration of a coverconnected to an electronic device according to various embodiments ofthe present disclosure;

FIG. 7 illustrates an example of an antenna configuration of a coverconnected to an electronic device according to various embodiments ofthe present disclosure;

FIG. 8 illustrates an example of an operation procedure of theelectronic device according to various embodiments of the presentdisclosure;

FIG. 9 illustrates an example of an operation procedure of theelectronic device according to various embodiments of the presentdisclosure;

FIG. 10 illustrates an example of an operation procedure of theelectronic device according to various embodiments of the presentdisclosure;

FIG. 11 illustrates an example of an operation procedure of theelectronic device according to various embodiments of the presentdisclosure;

FIG. 12 illustrates an example of an operation of the electronic devicein a standby mode according to various embodiments of the presentdisclosure;

FIG. 13 illustrates an example of an operation procedure of theelectronic device according to various embodiments of the presentdisclosure;

FIG. 14 illustrates an example of an operation procedure of theelectronic device according to various embodiments of the presentdisclosure;

FIG. 15 illustrates an example of a configuration of an electronicdevice according to various embodiments;

FIG. 16 illustrates an example of a memory map according to variousembodiments of the present disclosure;

FIG. 17 illustrates an operation procedure of the electronic deviceaccording to various embodiments of the present disclosure;

FIG. 18 illustrates an example of a program of an electronic devicerelated to short range wireless communication according to variousembodiments of the present disclosure;

FIG. 19 illustrates a block diagram of an electronic device according tovarious embodiments; and

FIG. 20 illustrates a block diagram of a program module according tovarious embodiments.

DETAILED DESCRIPTION

FIGS. 1 through 20, discussed below, and the various embodiments used todescribe the principles of the present disclosure in this patentdocument are by way of illustration only and should not be construed inany way to limit the scope of the disclosure. Those skilled in the artwill understand that the principles of the present disclosure may beimplemented in any suitably arranged electronic device or method ofoperating an electronic device in wireless communication.

Hereinafter, various embodiments of the present disclosure will bedescribed with reference to the accompanying drawings. However, itshould be understood that there is no intent to limit the presentdisclosure to the particular forms disclosed herein; rather, the presentdisclosure should be construed to cover various modifications,equivalents, and/or alternatives of embodiments of the presentdisclosure. In describing the drawings, similar reference numerals maybe used to designate similar constituent elements.

As used herein, the expression “have”, “may have”, “include”, or “mayinclude” refers to the existence of a corresponding feature (e.g.,numeral, function, operation, or constituent element such as component),and does not exclude one or more additional features.

In the present disclosure, the expression “A or B”, “at least one of Aor/and B”, or “one or more of A or/and B” may include all possiblecombinations of the items listed. For example, the expression “A or B”,“at least one of A and B”, or “at least one of A or B” refers to all of(1) including at least one A, (2) including at least one B, or (3)including all of at least one A and at least one B.

The expression “a first”, “a second”, “the first”, or “the second” usedin various embodiments of the present disclosure may modify variouscomponents regardless of the order and/or the importance but does notlimit the corresponding components. For example, a first user device anda second user device indicate different user devices although both ofthem are user devices. For example, a first element may be termed asecond element, and similarly, a second element may be termed a firstelement without departing from the scope of the present disclosure.

It should be understood that when an element (e.g., first element) isreferred to as being (operatively or communicatively) “connected,” or“coupled,” to another element (e.g., second element), it may be directlyconnected or coupled directly to the other element or any other element(e.g., third element) may be interposer between them. In contrast, itmay be understood that when an element (e.g., first element) is referredto as being “directly connected,” or “directly coupled” to anotherelement (second element), there are no element (e.g., third element)interposed between them.

The expression “configured to” used in the present disclosure may beexchanged with, for example, “suitable for”, “having the capacity to”,“designed to”, “adapted to”, “made to”, or “capable of” according to thesituation. The term “configured to” may not necessarily imply“specifically designed to” in hardware. Alternatively, in somesituations, the expression “device configured to” may mean that thedevice, together with other devices or components, “is able to”. Forexample, the phrase “processor adapted (or configured) to perform A, B,and C” may mean a dedicated processor (e.g., embedded processor) onlyfor performing the corresponding operations or a generic-purposeprocessor (e.g., central processing unit (CPU) or application processor(AP)) that can perform the corresponding operations by executing one ormore software programs stored in a memory device.

The terms used herein are merely for the purpose of describingparticular embodiments and are not intended to limit the scope of otherembodiments. As used herein, singular forms may include plural forms aswell unless the context clearly indicates otherwise. Unless definedotherwise, all terms used herein, including technical and scientificterms, have the same meaning as those commonly understood by a personskilled in the art to which the present disclosure pertains. Such termsas those defined in a generally used dictionary may be interpreted tohave the meanings equal to the contextual meanings in the relevant fieldof art, and are not to be interpreted to have ideal or excessivelyformal meanings unless clearly defined in the present disclosure. Insome cases, even the term defined in the present disclosure should notbe interpreted to exclude embodiments of the present disclosure.

An electronic device according to various embodiments of the presentdisclosure may include at least one of, for example, a smart phone, atablet Personal Computer (PC), a mobile phone, a video phone, anelectronic book reader (e-book reader), a desktop PC, a laptop PC, anetbook computer, a workstation, a server, a Personal Digital Assistant(PDA), a Portable Multimedia Player (PMP), a MPEG-1 audio layer-3 (MP3)player, a mobile medical device, a camera, and a wearable device.According to various embodiments, the wearable device may include atleast one of an accessory type (e.g., a watch, a ring, a bracelet, ananklet, a necklace, a glasses, a contact lens, or a Head-Mounted Device(MID)), a fabric or clothing integrated type (e.g., an electronicclothing), a body-mounted type (e.g., a skin pad, or tattoo), and abio-implantable type (e.g., an implantable circuit).

According to some embodiments, the electronic device may be a homeappliance. The home appliance may include at least one of, for example,a television, a Digital Video Disk (DVD) player, an audio, arefrigerator, an air conditioner, a vacuum cleaner, an oven, a microwaveoven, a washing machine, an air cleaner, a set-top box, a homeautomation control panel, a security control panel, a TV box (e.g.,Samsung HomeSync™, Apple TV™, or Google TV™), a game console (e.g.,Xbox™ and PlayStation™), an electronic dictionary, an electronic key, acamcorder, and an electronic photo frame.

According to another embodiment, the electronic device may include atleast one of various medical devices (e.g., various portable medicalmeasuring devices (a blood glucose monitoring device, a heart ratemonitoring device, a blood pressure measuring device, a body temperaturemeasuring device, etc.), a Magnetic Resonance Angiography (MRA), aMagnetic Resonance Imaging (MRI), a Computed Tomography (CT) machine,and an ultrasonic machine), a navigation device, a Global PositioningSystem (GPS) receiver, an Event Data Recorder (EDR), a Flight DataRecorder (FDR), a Vehicle Infotainment Devices, an electronic devicesfor a ship (e.g., a navigation device for a ship, and a gyro-compass),avionics, security devices, an automotive head unit, a robot for home orindustry, an automatic teller's machine (ATM) in banks, point of sales(POS) in a shop, or internet device of things (e.g., a light bulb,various sensors, electric or gas meter, a sprinkler device, a firealarm, a thermostat, a streetlamp, a toaster, a sporting goods, a hotwater tank, a heater, a boiler, etc.).

According to some embodiments, the electronic device may include atleast one of a part of furniture or a building/structure, an electronicboard, an electronic signature receiving device, a projector, andvarious kinds of measuring instruments (e.g., a water meter, an electricmeter, a gas meter, and a radio wave meter). In various embodiments, theelectronic device may be a combination of one or more of theaforementioned various devices. According to some embodiments, theelectronic device may also be a flexible device. Further, the electronicdevice according to an embodiment of the present disclosure is notlimited to the aforementioned devices, and may include a new electronicdevice according to the development of technology.

Hereinafter, an electronic device according to various embodiments willbe described with reference to the accompanying drawings. In the presentdisclosure, the term “user” may indicate a person using an electronicdevice or a device (e.g., an artificial intelligence electronic device)using an electronic device.

An electronic device 101 within a network environment 100, according tovarious embodiments, will be described with reference to FIG. 1. Theelectronic device 101 may include a bus 110, a processor 120, a memory130, an input/output interface 150, a display 160, and a communicationinterface 170. In some embodiments, the electronic device 101 may omitat least one of the elements, or may further include other elements.

The bus 110 may include, for example, a circuit that interconnects theelements 110 to 170 and delivers communication (for example, a controlmessage and/or data) between the elements 110 to 170.

The processor 120 may include one or more of a Central Processing Unit(CPU), an Application Processor (AP), and a Communication Processor(CP). The processor 120, for example, may carry out operations or dataprocessing relating to the control and/or communication of at least oneother element of the electronic device 101.

The memory 130 may include a volatile and/or non-volatile memory. Thememory 130 may store, for example, instructions or data relevant to atleast one other element of the electronic device 101. According to anembodiment, the memory 130 may store software and/or a program 140. Theprogram 140 may include a kernel 141, middleware 143, an ApplicationProgramming Interface (API) 145, and/or application programs (or“applications”) 147. At least some of the kernel 141, the middleware143, and the API 145 may be referred to as an Operating System (OS).

The kernel 141 may control or manage system resources (for example, thebus 110, the processor 120, or the memory 130) used for executing anoperation or function implemented by other programs (for example, themiddleware 143, the API 145, or the application programs 147).Furthermore, the kernel 141 may provide an interface through which themiddleware 143, the API 145, or the application programs 147 may accessthe individual elements of the electronic device 101 to control ormanage the system resources.

The middleware 143 may function as, for example, an intermediary forallowing the API 145 or the application programs 147 to communicate withthe kernel 141 to exchange data.

Furthermore, the middleware 143 may process one or more task requests,which are received from the application programs 147, according topriorities thereof. For example, the middleware 143 may assignpriorities for using the system resources (for example, the bus 110, theprocessor 120, the memory 130, and the like) of the electronic device101 to one or more of the application programs 147. For example, themiddleware 143 may perform scheduling or loading balancing on the one ormore task requests by processing the one or more task requests accordingto the priorities assigned to the one or more application programs.

The API 145, which is an interface through which the applicationprograms 147 control functions provided from the kernel 141 or themiddleware 143, may include, for example, at least one interface orfunction (for example, an instruction) for file control, window control,image processing, text control, and the like.

The input/output interface 150 may function as, for example, aninterface that may forward instructions or data, which is input from auser or another external device, to the other element(s) of theelectronic device 101. Furthermore, the input/output interface 150 mayoutput instructions or data, which are received from the otherelement(s) of the electronic device 101, to the user or the externaldevice.

Examples of the display 160 may include a Liquid Crystal Display (LCD),a Light-Emitting Diode (LED) display, an Organic Light-Emitting Diode(OLED) display, a MicroElectroMechanical Systems (MEMS) display, and anelectronic paper display. The display 160 may display, for example,various types of contents (for example, text, images, videos, icons, orsymbols) to the user. The display 160 may include a touch screen and mayreceive, for example, a touch, gesture, proximity, or hovering inputusing an electronic pen or the user's body part.

The communication interface 170 may configure communication, forexample, between the electronic device 101 and an external device (forexample, a first external electronic device 102, a second externalelectronic device 104, or a server 106). For example, the communicationinterface 170 may be connected to a network 162 through wireless orwired communication to communicate with the external device (forexample, the second external electronic device 104 or the server 106).

The wireless communication may use, for example, at least one of LongTerm Evolution (LTE), LTE-Advance (LTE-A), Code Division Multiple Access(CDMA), Wideband CDMA (WCDMA), Universal Mobile TelecommunicationsSystem (UMTS), WiBro (Wireless Broadband), Global System for MobileCommunications (GSM) and the like, for example, as a cellularcommunication protocol. In addition, the wireless communication mayinclude, for example, short range communication 164. The short rangecommunication 164 may include at least one of, for example, Wi-Fi,Bluetooth™, Near Field Communication (NFC), Magnetic Stripe Transmission(MST), and Global Navigation Satellite System (GNSS). The GNSS mayinclude, for example, at least one of a Global Positioning System (GPS),a Global navigation satellite system (Glonass), a Beidou Navigationsatellite system (hereinafter, referred to as “Beidou”), Galileo, andthe European Global satellite-based navigation system according to aplace of usage, a bandwidth, or the like. Hereinafter, in the presentdisclosure, the “GPS” may be interchangeably used with the “GNSS”. Thewired communication may include, for example, at least one of aUniversal Serial Bus (USB), a High Definition Multimedia Interface(HDMI), Recommended Standard 232 (RS-232), a Plain Old Telephone Service(POTS), and the like. The network 162 may include at least one of acommunication network such as a computer network (for example, a LAN ora WAN), the Internet, and a telephone network.

Each of the first and second external electronic devices 102 and 104 maybe of a type identical to or different from that of the electronicdevice 101. According to an embodiment, the server 106 may include agroup of one or more servers. According to various embodiments, all orsome of the operations executed in the electronic device 101 may beexecuted in another electronic device or a plurality of electronicdevices (for example, the electronic devices 102 and 104 or the server106). According to an embodiment, when the electronic device 101 has toperform some functions or services automatically or in response to arequest, the electronic device 101 may request another device (forexample, the electronic device 102 or 104 or the server 106) to performat least some functions relating thereto instead of, or in addition to,performing the functions or services by itself. The other electronicdevice (for example, the electronic device 102 or 104 or the server 106)may perform the requested functions or the additional functions and maytransfer the execution result to the electronic device 101. Theelectronic device 101 may provide the received result as it is, or mayadditionally process the received result to provide the requestedfunctions or services. To this end, for example, cloud computing,distributed computing, or client-server computing technology may beused.

Hereinafter, an electronic device according to various embodiments ofthe present disclosure will be described with reference to theaccompanying drawings.

FIG. 2 illustrates a configuration example of an electronic device andexternal devices within a network environment according to variousembodiments of the present disclosure.

Referring to FIG. 2, according to various embodiments of the presentdisclosure, the network environment corresponds to a network forwireless short range communication and may include an electronic device210 and an external device (for example, at least one of an accessorydevice (for example, a cover 220) and an NFC device 230, or anelectronic device 102 or 104) connected through the short range wirelesscommunication.

The electronic device 210 (for example, the electronic device 101 ofFIG. 1) may include at least one of a controller 211, a communicationunit 212, an input unit 213, a storage unit 214, and a display unit 215.According to various embodiments of the present disclosure, thecontroller 211 (for example, the processor 120 of FIG. 1) may processinformation according to an operation of the electronic device, orinformation according to an execution of a program, an application, or afunction, and may make a control to display the processed information onthe display unit 215 or to output the processed information through anaudio module (not shown).

According to various embodiments of the present disclosure, thecontroller 211 may make a control to display various type of information(contents) in entire or partial areas of the screen of the display unit.

Further, according to various embodiments of the present disclosure, thecontroller 211 may make a control to perform short range wirelesscommunication with external devices and make a control totransmit/receive data to/from the external device (for example, thecover 220 or the NFC device 230) through the short range wirelesscommunication.

According to various embodiments, the controller 211 may transmit atleast one piece of information which may be displayed on the displayunit 215 or information generated according to a particular event to theexternal device (for example, the cover 220) connected through thewireless short range communication (NFC) and control the external device(for example, the cover 220) to display the received information. Theevent may include at least one of recognition of coupling of the cover220 to the electronic device 210, an execution of an application for acover operation, and generation of information according to a setfunction (for example, at least one of a phone call, a message, and aset event).

According to various embodiments of the present disclosure, thecontroller 211 may periodically search for a wireless signal (forexample, an NFC signal) generated by external devices that are locatednear the electronic device 210 and capable of performing short rangewireless communication and identify the external devices capable ofperforming the short range wireless communication through the foundwireless signal. According to various embodiments, the controller 211may divide time during a preset period, set a time internalcorresponding to each of short range wireless communication types,search for a wireless signal (for example, an NFC signal) of thecorresponding type at the set time, and identify whether there is aneighboring external device corresponding to the corresponding type.

Further, according to various embodiments of the present disclosure,when short range wireless communication is performed with theneighboring external device (for example, the cover 220) requiringpower, the controller 211 may set a connection with the cover 220 andsupply wireless power to the cover 220 through an induced current of atleast one antenna included in an antenna module 212 a. Accordingly, thewireless power may be supplied to the cover 220 for a predetermined timeand the cover 220 may transmit a response signal to the electronicdevice 210. Further, when receiving the response signal that informs ofthe driving of the cover 220, the controller 211 may perform a shortrange wireless communication connection with the cover 220 for datatransmission/reception and transmit/receive data to/from the cover 220.

According to various embodiments, when the cover 220 is connected, thecontroller 211 may recognize the cover 220, make a short range wirelesscommunication (for example, NFC) connection, read information on thecover 220, execute an application for an operation of the cover 220, andtransmit configuration information indicating the set operation of thecover 220 through the executed application to the cover 220 based on theshort range wireless communication. After transmitting the configurationinformation, the controller 211 may disconnect the short range wirelesscommunication connected to the cover 220, switch to a standby modestate, and search for another external device (for example, the NFCdevice).

According to various embodiments, the controller 211 may identifywhether an event for the cover 220 is generated and, when the event isgenerated, may transmit information (hereinafter, referred to as eventinformation) related to the generated event to the cover 220 throughNFC. The controller 211 may identify whether an operation for displayingthe event information transmitted by the cover 220 is completed and,when the displaying of the event information is completed, may stop theNFC with the cover 220. When the NFC with the cover 220 is stopped, thecontroller 211 may switch to the standby mode again and search for anNFC signal, that is, whether there is an approaching NFC device (forexample, an NFC polling operation).

According to various embodiments, the controller 211 may ignore signalsgenerated by other NFC devices during the NFC with the cover 220 andfirst perform the NFC with the cover 220. Further, according to variousembodiments, the controller 211 may not perform the operation ofsearching for the NFC signal that is performed in the standby mode whilethe NFC with the cover 220 is performed, and, when switching to thestandby mode, perform the operation of searching for the NFC signal.

Further, according to various embodiments of the present disclosure, thecontroller 211 may determine generation of a first event by the cover220 and, when the first event is generated, may supply power to thecover 220 and determine whether a second event is generated using theNFC for a predetermined time during which power is supplied to thecover. In addition, when the operation of the cover is identified afterthe predetermined time passes, the controller 211 may transmit firstevent information to the cover through the NFC. Accordingly, the covermay display the first event information according to the first event.When the second event is generated while the first event information istransmitted to the cover through the NFC, the controller 211 may firsttransmit the first event information to the cover through the NFCregardless of the second event.

Further, according to various embodiments of the present disclosure, thecontroller 211 may include an NFC control module (not shown) forcontrolling short range wireless communication with the cover 220 or theexternal device (for example, the NFC device 230) and a power controlmodule (not shown) for controlling an operation for battery charging ordischarging through a wireless charging scheme and controlling anoperation of supplying power to at least one external device (forexample, the cover 220 or the NFC device 230). According to variousembodiments, the power control module (not shown) may be configuredseparately from the controller 211 and may charge power wirelesslysupplied through the antenna module 212 a in a battery (not shown)according to a control of the controller 211. Further, according tovarious embodiments, the controller 211 may include a separate covercontrol module (not shown) for controlling the operation of the cover.According to various embodiments, in a case where, for example, an NFCpolling operation is used, when the standby mode state is maintained andthe NFC control module of the controller 211 receives a control signal,the cover control module may switch to a cover mode, operate in thecover mode for a predetermined time, and switch back to the standbymode. The cover control module may control the antenna module 212 a tobe activated in the cover mode, and make a control to transmit an RFsignal including information related to a cover event to the cover 220through the antenna module 212 a. Further, according to variousembodiments, the cover control module may receive information on asearch period (for example, an NFC polling period) from the controller211 and, when a cover mode time interval arrives, switch to the covermode even though the control signal is not received from the controller211 based on the information on the received search period. Allfunctions of the cover control module according to the variousembodiments as described above may be included in the controller 211 andperformed by the controller 211.

Further, according to various embodiments, when a wireless chargingoperation is activated and the controller 211 switches to the cover modein a state where power is supplied to the battery, the controller 211may deactivate the wireless charging operation, transmit a wireless (RF)signal including event information generated in the cover mode to thecover through the antenna module 212 a, and supply power to the cover220. In addition, according to various embodiments, when the wirelesscharging operation is activated and an event is generated in the covermode in the state where power is supplied to the battery, the controller211 may deactivate the wireless charging operation, transmit a wirelesssignal including event information according to generation of the eventto the cover 220, and supply power to the cover 220. When thetransmission of the event information is completed, the controller 211may make a control to activate the wireless charging operation again andwirelessly charge the battery. When a wireless charging antenna (notshown) is activated according to the wireless charging operation, thewireless signal by NFC may receive interference by the wireless chargingoperation. Accordingly, the controller 211 may deactivate the wirelesscharging operation in the cover mode or when the event is generated inthe cover mode.

Further, according to various embodiments, when the wireless charging isperformed, that is, the wireless charging operation is activated, thecontroller 211 may maintain a connected state (NFC attach) withoutreleasing the connection with the antenna module 212 a. When theswitching to the cover mode is made and the event is generated, thecontroller 211 may control transmission power (Tx power) for wirelesscharging to be lower so that the wireless signal through NFC can betransmitted without any interference by the wireless charging.

According to various embodiments, the controller 211 may correspond to ahardware module or a software module (for example, an applicationprogram) and may be a hardware component (function) or a softwarecomponent (program) including at least one of various sensors includedin the electronic device, a data measurement module, an input/outputinterface, a module for managing a state or an environment of theelectronic device, and a communication module.

Further, according to various embodiments of the present disclosure, thecontroller 211 of the electronic device may be at least a part of theprocessor, and may include, for example, a combination of one or more ofhardware, software, and firmware. According to various embodiments, thecontroller 211 may omit at least some of the aforementioned elements ormay further include other elements for performing an image processingoperation as well as the aforementioned elements.

According to various embodiments of the present disclosure, at leastsome elements of the controller 211 of the electronic device mayinclude, in hardware, at least some of at least one processor includinga Central Processing Unit (CPU)/Micro Processing Unit (MPU), a memory(for example, a register and/or a Random Access Memory (RAM)) to whichat least one piece of memory loading data is loaded, and a bus forinputting/outputting at least one piece of data to the processor and thememory. Further, the controller 211 may include, in software, apredetermined program routine or program data which is loaded to thememory from a predetermined recording medium to perform a functiondefined in the electronic device and operation-processed by theprocessor.

According to various embodiments of the present disclosure, thecommunication unit 212 (for example, the communication interface 170 ofFIG. 1) of the electronic device may communicate with another electronicdevice or an external device (for example, the electronic device 102 or104 of FIG. 1 or the server 106) according to a control of thecontroller 211. According to various embodiments, the communication unit212 may transmit/receive data related to an executed operation to/fromthe external device according to a control of the controller 211. Thecommunication unit 212 may be connected to the network using wirelesscommunication or wired communication through the communication interfaceor perform communication through a connection between devices. Thewireless communication may include at least one of, for example, Wi-Fi,Bluetooth™ (BT), Near Field Communication (NFC), Global PositioningSystem (GPS), and cellular communication (for example, LTE, LTE-A, CDMA,WCDMA, UMTS, WiBro, GSM or the like). The wired communication mayinclude at least one of, for example, a Universal Serial Bus (USB), aHigh Definition Multimedia Interface (HDMI), Recommended Standard 232(RS-232), a Plain Old Telephone Service (POTS), a Universal AsynchronousReceiver Transmitter (UART), an Inter-Integrated Circuit (I2C), a SerialPeripheral Interface (SPI), and a Controller Area Network (CAN).Further, the communication unit 212 may include all types ofcommunication schemes which have been widely known or will be developedin the future as well as the aforementioned communication schemes.

According to various embodiments of the present disclosure, thecommunication unit 212 may be connected to at least one neighboringexternal device (for example, the cover 220 or the NFC device 230) (forexample, the electronic device 102 or 104 of FIG. 1) capable ofperforming short range wireless communication and perform short rangewireless communication.

According to various embodiments of the present disclosure, when thecover 220 is connected to the housing according to a control of thecontroller 211, the communication unit 212 may transmit/receive a signalfor a short range communication connection to/from the cover 220 and,when the short range communication is connected, transmit/receive data.

According to various embodiments of the present disclosure, thecommunication unit 212 may include at least one antenna (for example,the antenna module 212 a including an NFC antenna) for short rangewireless communication or a short range wireless communication module212 b (for example, an NFC chip (IC)). The antenna module 212 a maytransmit/receive a signal for an NFC connection and datatransmission/reception. Further, when the external device (for example,the cover 220) to which power will be supplied is connected, the antennamodule 212 a may generate an induced current and supply wireless powerto the cover 220. The short range wireless communication module 212 bmay include a function for the short range wireless communication andperform the function according to a control of the controller 211.According to various embodiments, when the number of antenna modules 212a is plural, the antenna modules 212 a may be divided into a mainantenna for transmitting/receiving a wireless signal and an antenna forsupplying wireless power. Further, according to various embodiments ofthe present disclosure, the communication unit 212 may further includean antenna (for example, a wireless power loop coil) for wirelesscharging to supply wireless power to a battery.

According to various embodiments of the present disclosure, the inputunit 213 of the electronic device (for example, the input/outputinterface 150 of FIG. 1) may transfer, to the controller 211, variouspieces of information such as number and character information input bythe user, various function settings, and signals which are input inconnection with a control of functions of the electronic device.Further, the input unit 213 may support a user input for executing amodule or an application that supports a particular function. The inputunit 213 may include at least one of a key input means such as akeyboard or a keypad, a touch input means such as a touch sensor or atouch pad, a sound source input means, a camera, various sensors, and agesture input means. In addition, the input unit 213 may include alltypes of input means which are being developed currently or will bedeveloped in the future. According to various embodiments of the presentdisclosure, the input unit 213 may receive information input by the userfrom the user through a touch panel of the display unit or a camera andmay transfer the input information to the controller 211.

According to various embodiments of the present disclosure, the inputunit 213 may transfer information related to a user's gesture receivedthrough the camera or various sensors to the controller 211. Further,the input unit 213 may transfer an input signal according to a selectionof at least one object (for example, content) displayed on the screen tothe controller 211.

According to various embodiments of the present disclosure, the inputunit 213 may receive an input signal for switching a mode from the userthrough the sound source input means and transfer the input signal tothe controller 211.

According to various embodiments, when an application for NFC with thecover 220 is executed as the mounting of the cover 220 is recognized,the input unit 213 may receive user input information for a functionprovided by the executed application. Further, the input unit 213 mayreceive setting information for short range communication from the user.

According to various embodiments of the present disclosure, the storageunit 214 (not shown) (for example, the memory 130 of FIG. 1) of theelectronic device may temporarily store various pieces of data generatedduring an execution of programs including a program used for a functionoperation according to various embodiments. The storage unit 214 maylargely include a program area and a data area. The program area maystore pieces of information related to driving of the electronic devicesuch as an Operating System (OS) that boots the electronic device. Thedata area may store transmitted/received data or generated dataaccording to various embodiments. Further, the storage unit 214 mayinclude at least one storage medium of a flash memory, a hard disk, amultimedia card micro type memory (for example, an SD or XD memory), aRAM, and a ROM.

According to various embodiments of the present disclosure, the storageunit 214 may store information for short range wireless communicationwith an external device (for example, the cover 220 or the NFC device230) and transmitted/received data.

According to various embodiments of the present disclosure, the displayunit 215 (for example, some elements of the input/output interface 150of FIG. 1 or the display 160) of the electronic device may outputoperation execution result information (for example, at least one oftext, images, or videos) according to a control of the controller 211.

According to various embodiments of the present disclosure, the displayunit 215 may display an input pad (for example, a button) for inputtingat least one of various characters, numbers, or symbols into an inputwindow on the screen through various methods. Further, the display unit215 may display a service execution screen according to an execution ofvarious applications related to information transmission/reception.According to various embodiments, the display unit 215 may execute anddisplay an application for short range wireless communication with thecover 220. Further, the display unit 215 may display information on afunction executed according to set conditions or user input informationand, when at least one piece of the displayed information is transmittedto the cover 220 and displayed, may not display at least one piece ofthe transmitted information. That is, when an event for the cover isgenerated and event information is transmitted to the cover 220, thedisplay unit 215 may not display the event information.

According to various embodiments of the present disclosure, when thedisplay unit 215 of the electronic device is implemented in the form ofa touch screen, the display unit 215 may correspond to the touch screenof the input unit (not shown). When the display unit 215 and the inputunit 213 are implemented together in the form of the touch screen, thedisplay unit 215 may display various pieces of information generatedaccording to a user's touch action.

According to various embodiments, the display unit 215 may be configuredby at least one of a Liquid Crystal Display (LCD), a Thin Filmtransistor LCD (TFT-LCD), an Organic Light Emitting Diodes (OLEDs), LED,Active Matrix OLED (AMOLED), a flexible display, and a 3 dimensionaldisplay. Some of the displays may be implemented in a transparent typeor a light transmission type so that the outside can be seentherethrough. The display may be implemented in a transparent displayform including Transparent OLED (TOLED).

According to various embodiments of the present disclosure, theelectronic device 210 may further include another installed display unit(for example, an extended display unit or a flexible display unit) aswell as the display unit 215 and a display unit of another externalelectronic device (for example, at least one of an external displaydevice, a wearable device, and an external terminal device) linked tothe electronic device.

According to various embodiments of the present disclosure, theelectronic device may further include an audio module (not shown) (forexample, the input/output interface 150 of FIG. 1). The audio module mayoutput a sound and may include, for example, at least one of an audiocodec, a microphone (MIC), a receiver, an earphone output (EAR_L), and aspeaker. According to various embodiments, when voice informationcorresponding to the event information transmitted to the externaldevice (for example, the cover 220) through short range wirelesscommunication is identified, the audio module may output the identifiedvoice information in accordance with the event information displayed onthe cover 220. According to various embodiments, the audio module mayoutput various pieces of voice information for short range wirelesscommunication.

According to various embodiments of the present disclosure, theelectronic device may further include a means for outputting vibrationor a means for outputting smell.

According to various embodiments of the present disclosure, mainelements of the electronic device have been described through theelectronic device of FIG. 2. However, according to various embodimentsof the present disclosure, all the elements illustrated in FIG. 2 arenot necessary elements, and the electronic device may be implemented bymore or less elements than the illustrated elements. Further, locationsof the main elements of the electronic device illustrated in FIG. 2 mayvary depending on various embodiments.

Referring back to FIG. 2, according to various embodiments of thepresent disclosure, the first external device may be an accessory device(for example, the cover 220) linked with the electronic device 210, andmay include at least one of a communication unit 221, a controller 222,a display driver 223, and a display unit 224. Further, according tovarious embodiments, the cover 220 may further include the controller222, the antenna module 221 a including at least one short rangewireless communication antenna of the communication unit 221, or arectifier circuit unit connected to the display driver 223 to supplypower.

Further, the cover 220 may be implemented to be connected to the housingof the electronic device 210.

According to various embodiments, the cover 220 may be implemented tocover the back surface of the electronic device 210.

According to various embodiments of the present disclosure, thecommunication unit 221 may include the antenna module 221 a including atleast one antenna for short range wireless communication and a shortrange wireless communication module 221 b (for example, the NFC chip(IC)). The antenna module 221 a may transmit/receive a signal for an NFCconnection and data transmission/reception. Further, when the device(for example, the electronic device 210) to receive power is connected,the antenna module 212 a may receive a wireless power signal, generatean induced current according to the received wireless power signal, andapply the power to the controller 222, the display driver 223, and thedisplay unit 224. The short range wireless communication module 212 bmay include a function for the short range wireless communication andperform the function according to a control of the controller 222.According to various embodiments of the present disclosure, when thenumber of antennas included in the antenna module 221 a is plural, theplurality of antennas may be disposed according to an antenna pattern ofthe electronic device 210, and one predetermined antenna may operate asa main antenna for transmitting/receiving a wireless signal and at leastone remaining antenna may operate as an antenna for receiving wirelesspower.

According to various embodiments, when the communication unit 221 isconnected to the electronic device 210, the communication unit 221 mayreceive the wireless power signal from the electronic device 210 andgenerate an induced current in the controller 222. When a responsesignal according to device driving is received from the controller 222,the communication unit 221 may transmit the response signal to theelectronic device 210. Further, in order to transmit/receive data (forexample, setting information, event information, or operation completioninformation), the communication unit 221 may transmit/receive a signalfor performing a short range wireless communication connection, andreceive event information from the electronic device 210 as the event isgenerated and short range wireless communication is connected. Inaddition, the communication unit 221 may transmit information on theoperation completion transmitted from the controller 222 to theelectronic device 210.

According to various embodiments of the present disclosure, thecontroller 222 (for example, a Micro Controller Unit (MCU) or a FieldProgrammable Gate Array (FPGA)) may perform a general control operationof the cover 220 and process information according to the operation ofthe cover 220 or an execution of a program, an application, or afunction. Further, the controller 222 may transmit the processedinformation to the display unit 224 through the display driver 223 andmake a control to display the processed information. The controller 222may transmit the processed information to the communication unit 221 andmake a control to transmit the processed information to the device (forexample, the electronic device 210) connected through short rangewireless communication.

According to various embodiments of the present disclosure, when thecontroller 222 is connected to the electronic device 210, the controller222 may receive an induced current generated by the antenna module 221 aand make a control to operate the cover 220. According to variousembodiments, when wireless power is supplied for a predetermined time,the controller 222 may turn on the cover 220.

According to various embodiments, the controller 222 may generate aresponse signal according to device driving and make a control totransmit the response signal to the electronic device 210, and mayperform an operation for a short range wireless communication connectionwith the electronic device 210. Further, as the short range wirelesscommunication is connected, the controller 222 may make a control totransmit/receive information for an authentication of the cover 220to/from the electronic device 210 and process an authenticationperformance operation. The controller 222 may process event informationtransmitted from the electronic device 210 and make a control to displaythe received event information on the display unit 224.

According to various embodiments, the controller 222 may identifywhether the event information is completely displayed and, when theevent information is completely displayed, make a control to transmit anoperation completion signal including information on the completion ofthe displaying to the electronic device 210.

According to various embodiments, the controller 222 may make a controlto apply power to the display unit 224 to maintain the displaying of theevent information on the display unit 224 even in a state where theshort range wireless communication connection with the electronic device210 is released. For example, when short range wireless communication isconnected through one antenna included in the antenna module 221 a andpower is supplied therethrough, the controller 222 may control the oneantenna to receive wireless (RF) power signal for a predetermined timeeven in a state where the short range wireless communication connectedis blocked.

According to various embodiments, in a case where the number of NFCantennas is plural, if wireless power is supplied through a sub antennafor supplying auxiliary power even in a state where short range wirelesscommunication connection through a main antenna is blocked, thecontroller 222 may make a control to apply the supplied power to thedisplay unit 224.

According to various embodiments of the present disclosure, thecontroller 222 of the cover 220 may be at least a part of the processor,and may include, for example, a combination of one or more of hardware,software, and firmware. According to various embodiments, the controller222 may omit at least some of the aforementioned elements or may furtherinclude other elements for performing an image processing operation aswell as the aforementioned elements.

According to various embodiments of the present disclosure, at leastsome elements of the controller 222 may include, in hardware, at leastsome of at least one processor including a Central Processing Unit(CPU)/Micro Processing Unit (MPU), a memory (for example, a registerand/or a Random Access Memory (RAM)) to which at least one piece ofmemory loading data is loaded, and a bus for inputting/outputting atleast one piece of data to the processor and the memory. Further, thecontroller 222 may include, in software, a predetermined program routineor program data which is loaded to the memory from a predeterminedrecording medium to perform a function defined in the electronic deviceand operation-processed by the processor.

According to various embodiments of the present disclosure, the displayunit 224 may display data (for example, event information) received fromthe electronic device 210. The event information may be informationtransmitted by the electronic device 210 according to event generationand may include information for temporary notification of text or imagesor information that requires successive operations in the form ofanimation.

According to various embodiments of the present disclosure, the displayunit 224 of the cover 220 may use a storable reflective display havingno power consumption on a stopped screen and may be configured in theform of, for example, at least one of E-ink, Electrophoretic Display(EPD), and cholesteric LCD.

According to various embodiments, when the display unit 224 of the cover220 can be driven with low power or sufficient power is supplied to thedisplay unit 224, the display unit 224 may be configured by one or moreof a Liquid Crystal Display (LCD), a Thin Film transistor LCD (TFT-LCD),an Organic Light Emitting Diode (OLED), LED, Active Matrix OLED(AMOLED), a flexible display, and a 3 dimensional display. Some of thedisplays may be implemented in a transparent type or a lighttransmission type so that the outside can be seen therethrough. Thedisplay may be implemented in a transparent display form includingTransparent OLED (TOLED).

Referring to FIG. 2, the second external device (for example, the NFCdevice 230) may include an NFC antenna 231 and a tag chip (IC) 232 forNFC. When the second external device is found in a standby mode state ofthe electronic device 210 and is connected to the electronic device 210through NFC, the second external device may transmit card information tothe electronic device 210 that is driven and serves as a reader.

FIG. 3 illustrates an example of a configuration of an electronic deviceaccording to various embodiments of the present disclosure.

Referring to FIG. 3, a cover 320 (for example, the cover 220 of FIG. 2)may be connected to an electronic device 310 (for example, theelectronic device 101of FIG. 1 or the electronic device 210 of FIG. 2)to cover a screen of a display unit 311 (for example, the display 160 ofFIG. 1 or the display unit 215 of FIG. 1) disposed on a first surface ofthe housing of the electronic device 310 according to variousembodiments of the present disclosure. The cover 320 may have a displayunit 321 (for example, the display unit 224 of FIG. 2) disposed on aback surface that covers a screen area of the display unit 311 of theelectronic device 310, and a short range communication module 322 (forexample, the communication unit 221 of FIG. 2) for a connection of shortrange communication (for example, NFC) may be disposed in one area of asecond surface of the electronic device 310.

FIG. 4 illustrates an example of a configuration of an electronic deviceaccording to various embodiments of the present disclosure.

Referring to FIG. 4, a cover 410 (for example, the cover 220 of FIG. 2or the cover 320 of FIG. 3) according to various embodiments of thepresent disclosure may be connected to cover the back surface of thehousing of the electronic device (for example, the electronic device 101of FIG. 1, the electronic device 210 of FIG. 2, or the electronic device310 of FIG. 3). The cover 410 may include a display unit 411 (forexample, the display unit 224 of FIG. 2) mounted on cover members 412 or413. Further, the cover 410 may include an NFC module 424 (or acommunication unit of the cover) disposed on the surface connected tothe electronic device. For example, in order to increase efficiency ofreceived power, the cover 410 may allow at least one NFC antennaincluded in the NFC module 424 to arrange according to an NFC antennapattern of the electronic device.

The cover according to the various embodiments of the present disclosureas described above may be configured in various forms as well as theform of the cover 320 of FIG. 3 or the cover 410 of FIG. 4.

FIG. 5 illustrates an example of a configuration of an electronic deviceaccording to various embodiments of the present disclosure.

Referring to FIG. 5, according to various embodiments of the presentdisclosure, when a controller 510 (for example, the processor 120 ofFIG. 1 or the controller 211 of FIG. 2) activates short range wirelesscommunication, an electronic device 500 (for example, the electronicdevice 101 of FIG. 1, the electronic device 210 of FIG. 2, or theelectronic device 310 of FIG. 3) may transmit a control signal to ashort range wireless communication module 520 (for example, thecommunication unit 212 of FIG. 2). Accordingly, the short range wirelesscommunication module 520 (for example, the short range wirelesscommunication module 212 b of FIG. 2) may access an NFC antenna 531 (NFCloop coil) included in an antenna module 530 (for example, the antennamodule 212 a of FIG. 2) and activate NFC. Further, the electronic devicemay release a connection of an antenna 533 (wireless power loop coil)for wireless charging with a wireless charging module 540 or blockcommunication for wireless charging. The NFC antenna 531 and the antenna533 for wireless charging may be disposed in adjacent areas to eachother and, accordingly, interference may be generated therebetween.Further, referring to FIG. 12, the antenna module 530 may include atleast one other antenna 535 used in another communication scheme oranother mode (for example, an NFC payment mode) in an area adjacent tothe NFC antenna 531 and the antenna 533 for wireless charging.

FIG. 6 illustrates an example of an antenna configuration of a coverconnected to an electronic device according to various embodiments ofthe present disclosure.

Referring to FIG. 6, according to various embodiments of the presentdisclosure, a cover 620 (for example, the cover 220 of FIG. 2, the cover320 of FIG. 3, or the cover 410 of FIG. 4) may be mounted to anelectronic device 610 (for example, the electronic device 101 of FIG. 1,the electronic device 210 of FIG. 2, the electronic device 310 of FIG.3, or the electronic device 500 of FIG. 5). When the cover 620 ismounted to the electronic device 610, an antenna 621 (for example, theantenna module 221 a of FIG. 2) for NFC of the cover 620 may beconnected to an antenna module 611 (for example, the antenna module 212a of FIG. 2). The antenna 621 of the cover 620 may be arranged on thecover 620 for an access according to an antenna pattern of the antenna611 a of the antenna module 611 of the electronic device 610. Accordingto various embodiments, the cover 620 may further include at least oneantenna for supplying auxiliary power as well as the antenna 621 usedfor a cover mode operation. The number and sizes of antennas arranged onthe cover 620 may vary depending on power supplied to the cover 620.According to various embodiments, when the cover 620 includes aplurality of antennas, among the included antennas, the antenna 621arranged according to the antenna pattern on the electronic device maybe activated and the remaining antennas may be deactivated.

FIG. 7 illustrates an example of an antenna configuration of a coverconnected to an electronic device according to various embodiments ofthe present disclosure.

According to various embodiments of the present disclosure, a cover 701,703, or 705 (for example, the cover 220 of FIG. 2, the cover 320 of FIG.3, or the cover 410 of FIG. 4) may include at least one antenna 711,713, or 715 arranged at various locations and forms in a particular area(for example, a central area, an upper area, or an edge line) accordingto a type of each electronic device. At least one antenna 711, 713, or715 of the cover 701, 703, or 705 may be configured in a spiral, meanderline, or sing loop form and a multi-antenna pad type. The multi-antennapad may be configured separately and used for various types of coversand electronic devices. Further, the cover according to variousembodiments of the present disclosure may include an antenna arranged invarious forms as well as the aforementioned forms illustrated in FIG. 7.

An electronic device according to one of various embodiments of thepresent disclosure may include a communication unit for communicatingwith a cover connected to the electronic device through short rangewireless communication, and a controller. The controller may determinegeneration of an event related to the cover, supplies power to the coverthrough wireless communication when the event is generated, make acontrol to transmit event information to the cover through the shortrange wireless communication to display the information related to thegenerated event on the cover when the cover is driven by the suppliedpower, and switch to a standby mode after releasing a communicationconnection with the cover when an operation of the cover according tothe event is completed.

According to various embodiments of the present disclosure, thecontroller may not recognize another external device while the eventinformation is transmitted to the cover.

According to various embodiments of the present disclosure, thecontroller may search for the cover during a time interval of an Nsearch period corresponding to the cover and, when the time intervalcorresponding to the cover passes, search for another external devicecorresponding to another time interval of the search period.

According to various embodiments of the present disclosure, thecontroller may transmit the information related to the event to thecover for the time interval corresponding to the cover and, when thetime interval corresponding to the cover set in accordance with thecover passes and the other time interval is selected, determine that theoperation of the cover is completed.

According to various embodiments of the present disclosure, even whenthe connection of the short range wireless communication with the coveris released, the controller may maintain an operation for supplying thepower to the cover for a preset time by using a routine different from aroutine for connecting the short range wireless communication.

According to various embodiments of the present disclosure, thecontroller may calculate an operation time of the cover by analyzing theinformation related to the event and, when the calculated operation timepasses, determine that the operation of the cover is completed.

According to various embodiments of the present disclosure, when a tagsignal including information indicating the completion of the operationis received from the cover, the controller may determine that theoperation of the cover is completed.

According to various embodiments of the present disclosure, when theelectronic device releases the connection of the short range wirelesscommunication with the cover, switches to the standby mode, and performsan operation in the standby mode, if another external device is notrecognized, the controller may maintain an operation for supplying thepower to the cover for a preset standby time.

According to various embodiments of the present disclosure, when thecover is driven, the controller may receive authentication informationof the cover, perform an authentication, and then perform an operationfor the connection of the short range wireless communication with thecover.

An accessory device (for example, the cover 220 of FIG. 2) according toone of various embodiments of the present disclosure may include ahousing including a first surface and a second surface facing anopposite side to the first surface, a connecting structure connected tothe housing and making the second surface attachable to/detachable fromone surface of an external electronic device, a display formed on atleast a part of the first surface, and a control circuit disposed insidethe housing and electrically connected to the display, wherein thecontrol circuit may include a conductive pattern arranged inside thehousing near the second surface of the housing to receive a magneticflux generated from the one surface of the external electronic deviceand/or a transmitted signal, a power storage device that at leasttemporarily stores power induced by the magnetic flux; and a memorydevice that temporarily stores at least a part of information includedin the transmitted signal, and at least a part of the display may beactivated using at least the part of the information and the power.

According to various embodiments of the present disclosure, the memorydevice may pre-store data on at least one of an image, text, and afigure pattern to be displayed at least the part of the display, and thecontrol circuit may select at least a part of the data at leastpartially based on at least the part of the information included in thetransmitted signal and activate at least the part of the display byusing at least the selected part of the data.

A device (for example, the cover 220 of FIG. 2) according to one ofvarious embodiments of the present disclosure may include a housingincluding a first surface facing a first direction and a second surfacefacing a second direction opposite to the first direction, a connectingstructure that makes the housing attachable to/detachable from a backsurface of an external device to allow the second surface to face theback surface of the external device, a short range communication circuitthat receives wireless power and at least one signal from the externaldevice through the back surface of the external device, the short rangecommunication circuit being located inside the housing, a controlcircuit located inside the housing and electrically connected to theshort range communication circuit, and at least one display elementexposed to the first surface of the housing, wherein the display elementmay include a container, liquid within the container, and a plurality ofparticles distributed in the liquid, and the control circuit may move atleast some of the plurality of particles existing in at least one oftext and an image to the first surface in response to the at least onesignal from the external device.

An operation procedure for short range wireless communication in theabove described electronic device will be described in detail withreference to the accompanying drawings.

FIG. 8 illustrates an example of an operation procedure of an electronicdevice according to various embodiments of the present disclosure.

Referring to FIG. 8, according to various embodiments of the presentdisclosure, in operation 801, the electronic device (for example, theelectronic device 101 of FIG. 1, the electronic device 210 of FIG. 2, orthe electronic device 310 of FIG. 3) may identify whether the cover (forexample, the electronic device 102 or 104 of FIG. 1, the electronicdevice 210 of FIG. 2, the cover 320 of FIG. 3, or the cover 410 of FIG.4) is connected to the housing, recognize a cover connected state, andperform a setting operation according to the coupling of the cover. Whenit is identified that the cover is connected based on a result of theidentification of operation 801, the electronic device may performoperation 803.

In operation 803, the electronic device may perform a standby modeoperation. The standby mode operation may include at least one of anoperation of periodically searching for a short range wirelesscommunication signal (for example, an NFC signal) and an operation ofidentifying whether an event (for example, an event of the cover) isgenerated. The electronic device may identify an event set totransmit/receive data to/from the cover in a standby mode state througha short range wireless communication connection. The electronic devicemay perform a wireless signal operation (for example, NFC signal search)in the standby mode state.

The electronic device may identify whether an event of the cover isgenerated in operation 805. When the event of the cover is notgenerated, the electronic device may proceed to operation 803 andperform the standby mode operation.

When the event of the cover is generated based on a result of theidentification of operation 805, the electronic device performsoperation 807.

In operation 807, the electronic device may transmit a wireless powersignal to the cover and, when the cover receiving power is driven by thetransmitted wireless power signal, perform a short range wirelesscommunication connection with the cover. Further, the electronic devicemay authenticate the cover by using authentication information (forexample, identification information) received from the cover when theshort range wireless communication connection with the cover isperformed.

When the electronic device is connected to the cover through the shortrange wireless communication, the electronic device may transmitinformation on the generated event (hereinafter, referred to as eventinformation) to the cover through the short range wireless communicationin operation 809.

In operation 811, the electronic device may identify whether eventinformation is completely displayed on the cover. According to variousembodiments, the electronic device may use a tag signal and, when a tagsignal includes information indicating that the event information iscompletely displayed as the event information is completely displayed onthe cover, may identify that the operation of the cover is completed,that is, the event information is completely displayed. According tovarious embodiments, the electronic device may transmit the eventinformation to the cover and, when a predetermined time passes,determine that the operation of the cover is completed based on theevent information. The completion of the operation of the cover may beidentified according to various embodiments in addition to the aboveembodiments.

When the operation of the cover is not completed based on a result ofthe identification of operation 811, the electronic device maycontinuously identify whether the operation of the cover is completed.When the operation of the cover is completed, the electronic device mayperform operation 813.

In operation 813, as the operation of the cover is completed, theelectronic device may release the NFC connection with the cover, switchto the standby mode, and then perform operation 803 again.

Next, an operation procedure of the cover that performs short rangecommunication with the electronic device through the operation procedureillustrated in FIG. 8 will be described with reference to the drawings.

FIG. 9 illustrates an example of an operation procedure of the coveraccording to various embodiments of the present disclosure.

Referring to FIG. 9, when an event is generated in a state where thecover (for example, the electronic device 102 or 104 of FIG. 1, theelectronic device 210 of FIG. 2, the cover 320 of FIG. 3, or the cover410 of FIG. 4) is connected to the electronic device (for example, theelectronic device 101 of FIG. 1, the electronic device 210 of FIG. 2, orthe electronic device 310 of FIG. 3), the cover may receive power fromthe electronic device through NFC in operation 901. According to variousembodiments, when the cover receives a power signal from the electronicdevice, an induced current is generated in an NFC antenna and the covermay receive power and, when power is supplied for a predetermined time,power is applied to internal modules and the internal modules may bedriven.

When power is supplied and thus the cover initiates the operation, thecover may transmit information for performing an authentication to theelectronic device and transmit/receive information related to theauthentication to perform the authentication of the cover in operation903.

When the authentication is completed and an NFC connection procedure fortransmitting/receiving data is completed, the cover may receive eventinformation from the electronic device and store the received eventinformation in a memory in operation 905.

In operation 907, the cover may display the received event information.

In operation 909, the cover may identify whether the operation fordisplaying the event information is completed. When the operation is notcompleted based on a result of the identification, the cover maycontinuously perform operation 907. When the operation is completed, thecover may perform operation 911. According to various embodiments, thecover may identify control information received together with the eventinformation from the electronic device, display the event informationfor a predetermined time included in the control information, andcomplete the operation. According to various embodiments, when thepreviously displayed information such as an electronic ink display (EPD)is maintained, the cover may identify that the operation is completed asan update to the received event information is completed. According tovarious embodiments, the cover may identify that the operation iscompleted after a last frame among frames of the received eventinformation is displayed or a predetermined time passes after the lastframe is displayed.

In operation 911, the cover may identify that the operation is completedand transmit a signal that notifies the completion of the operation tothe electronic device. According to various embodiments, the cover mayinsert information indicating the completion of the operation into a tagsignal and transmit the tag signal to the electronic device. Accordingto various embodiments, the cover may transmit a separate signal thatnotifies of the completion of the operation through NFC. According tovarious embodiments, when cover completes the operation controlinformation received from the electronic device, the cover may notperform operation 911 or may transmit a response signal corresponding tothe control information.

In operation 913, the NFC connection may be released as the coveridentifies the completion of the operation. According to variousembodiments, the cover may maintain the supply of wireless power eventhough the NFC connection is released. According to various embodiments,the cover may supply power to the display for a predetermined time eventhrough the wireless power signal is not received from the electronicdevice as the NFC connection is released. According to variousembodiments, the cover may release the NFC connection of the mainantenna and receive power for performing the operation through the subantenna.

After operation 913, the cover may complete the operation for performinga predetermined function such as a display operation and turn off thedevice as the NFC connection is released.

An operation procedure of the electronic device will be described whenthe coupling of the cover to the electronic device is recognized afterdriving of the electronic device is initiated (woken up) before theoperation procedures of the electronic device and the cover describedabove are performed.

FIG. 10 illustrates an operation process of the electronic deviceaccording to various embodiments of the present disclosure.

Referring to FIG. 10, when the cover (the electronic device 102 of FIG.1, the cover 220 of FIG. 2, the cover 320 of FIG. 3, or the cover 410 ofFIG. 4) may be connected to the housing of the electronic device (forexample the electronic device 101 of FIG. 1, the electronic device 210of FIG. 2, or the electronic device 310 of FIG. 3), power is supplied,and driving of the electronic device is initiated (woken up), theelectronic device may recognize the connected cover in operation 1001.According to various embodiments, as the electronic device detects anNFC signal generated by the connected cover, the electronic device mayrecognize the cover. According to various embodiments, the electronicdevice may recognize the coupling of the cover through a sensor includedin the electronic device. According to various embodiments, when aconnector of the housing is electrically connected to a connector of thecover, the electronic device may recognize the coupling of the cover.

In operation 1003, when the electronic device identifies the couplingstate of the cover, the electronic device may connect NFC with thecover. According to various embodiments, when an NFC polling scheme isused, the electronic device may search for the cover in a predeterminedtime interval of the polling period and recognize the cover. When thecover is recognized, the electronic device may transmit a wireless powersignal and connect NFC with the cover as the cover is driven.

When the NFC is connected, the electronic device may serve as a readerand read cover information from the cover in operation 1005. Inoperation 1007, the electronic device may set a cover operation by usingthe read cover information. The setting of the cover operation mayinclude an execution of a corresponding application and a setting of atleast one of notification information, an operation time, and anoperation method through the executed application.

In operation 1009, the electronic device may transmit settinginformation according to a dynamic setting to the cover and identify theoperation of the cover.

After the electronic device identifies the operation of the cover or apredetermined time passes, the electronic device may release NFC inoperation 1011 and switch to the standby mode in operation 1013. For anNFC connection with another NFC device regardless of the cover in thestate where the electronic device is connected to the cover, theelectronic device may release the NFC connection with the electronicdevice and search for an NFC signal.

As described above, when the electronic device switches to the standbymode and an event of the cover is generated in a state where the standbymode state is maintained in operation 1011, the electronic device mayperform the operation procedure as illustrated in FIG. 8.

A detailed operation procedure of a method for short range wirelesscommunication will be described according to the operation procedure ofthe electronic device described in FIG. 8, 9, or 10 with reference tothe accompanying drawings.

FIG. 11 illustrates an operation procedure of the electronic deviceaccording to various embodiments of the present disclosure.

Referring to FIG. 11, the electronic device (for example, the electronicdevice 101 of FIG. 1, the electronic device 210 of FIG. 2, or theelectronic device 310 of FIG. 3) according to various embodiments of thepresent disclosure may perform a standby mode operation in a state wherethe electronic device is connected to the cover (for example, the cover220 of FIG. 2, the cover 320 of FIG. 3, or the cover 410 of FIG. 4) inoperation 1101. The electronic device may periodically perform an NFCsignal search operation in the standby mode state. According to variousembodiments, the electronic device may periodically search for an NFCsignal by applying an NFC polling scheme.

In operation 1103, the electronic device may identify whether an event(for example, an event of the cover) is generated in the standby mode.When the event is not generated in the cover based on a result of theidentification, the electronic device may perform operation 1119. Whenthe event is generated in the cover based on the result of theidentification, the electronic device may perform operation 1105.

In operation 1105, the electronic device switches to a cover operationmode in the standby mode state and stop the NFC signal search operation.

In operation 1107, the electronic device may transmit a wireless powersignal to the cover and identify whether the cover having received poweris driven by the transmitted wireless power signal.

In operation 1109, when the electronic device identifies driving of thecover, the electronic device may perform a procedure for an NFCconnection. When the electronic device performs NFC connection with thecover, the electronic device may perform a cover authentication based onauthentication information (for example, identification information)received from the cover in operation 1111.

When the NFC is connected between the electronic device and the cover,the electronic device may transmit information related to the generatedevent (hereinafter, referred to as event information) to the coverthrough the NFC in operation 1113.

In operation 1115, the electronic device may identify whether anoperation for displaying the event information on the cover iscompleted. According to various embodiments, the electronic device mayuse a tag signal and, when a tag signal includes information indicatingthat the event information is completely displayed as the eventinformation is completely displayed on the cover, may identify that theoperation of the cover is completed, that is, the event information iscompletely displayed. According to various embodiments, the electronicdevice may transmit the event information to the cover and, when apredetermined time passes, determine that the operation of the cover iscompleted based on the event information. The completion of theoperation of the cover may be identified according to variousembodiments in addition to the above embodiments.

When the operation of the cover is not completed based on a result ofthe identification of operation 1115, the electronic device maycontinuously identify whether the operation of the cover is completed.When the operation of the cover is completed, the electronic device mayperform operation 1117.

In operation 1117, as the operation of the cover is completed, theelectronic device may release the NFC connection with the cover, switchto the standby mode, and then perform operation 1101 again.

In operation 1119, the electronic device may identify whether anotherNFC device is recognized in the standby mode state. When the other NFCdevice is not identified based on a result of the identification, theelectronic device may continuously perform the standby mode operation inoperation 1101. When the other NFC device is recognized based on theresult of the identification, the electronic device may connect NFC withthe other recognized NFC device in operation 1121.

When a predetermined time passes or the particular operation iscompleted, the electronic device may release the NFC connection with theother NFC device in operation 1123, switch to the standby mode, andperiodically perform the NFC signal search operation again in operation1101.

FIG. 12 illustrates an example of an operation of the electronic devicein a standby mode according to various embodiments of the presentdisclosure.

According to various embodiments of the present disclosure, whenperforming operation 1101 of FIG. 11, the electronic device mayperiodically search for the NFC signal by applying the NFC pollingscheme.

Referring to FIG. 12, the electronic device may serve as a reader,divide a time interval of a search period (for example, an NFC pollingperiod) according to each of NFC types, and search for an externaldevice (an NFC device) corresponding to the corresponding NFC type inthe set time interval. According to various embodiments, the pollingperiod may be largely divided into an NFC passive communication interval1201 and an NFC active communication interval 1203, and the NFC activecommunication interval 1203 may include divided slots according to anexternal device existing outside. A slot 1205 (for example, a second NFCactive type time interval) may be set in the NFC active communicationinterval 1203 and, accordingly, the electronic device may search for thecover for a preset time in accordance with the cover. The NFC passivecommunication interval 1201 is an interval in which data is transmittedin a load modulation scheme through an electromagnetic field provided bya reader (not shown). Further, the NFC active communication interval1203 is an interval in which the terminal directly generates a magneticfield and transmits data carried on the corresponding magnetic field,and may use a scheme for selecting the corresponding slot according toan NFC device existing outside.

FIG. 13 illustrates an example of an operation procedure of theelectronic device according to various embodiments of the presentdisclosure.

Referring to FIG. 13, in operation 1301, the electronic device (forexample, the electronic device 101 of FIG. 1, the electronic device 210of FIG. 2, or the electronic device 310 of FIG. 3) may identify whethera module for NFC is in an on state (NFC is turned on).

When an NFC function is executed, the electronic device may identifywhether the cover (for example, the cover 220 of FIG. 2, the cover 320of FIG. 3, or the cover 410 of FIG. 4) is recognized through coupling ofthe cover to the electronic device or whether an event related to thecover is generated in a state where the cover is connected in operation1303.

When the cover is not connected or the event is not generated in thestate where the cover is connected based on a result of theidentification of operation 1303, the electronic device may performoperation 1303 again. According to various embodiments, when the eventis not generated in the state where the cover is connected, theelectronic device may identify an approach of another NFC device and,when the other NFC device approaches, connect NFC with the other NFCdevice.

When the cover is connected or the event is generated in the state wherethe cover is connected based on the result of the identification ofoperation 1303, the electronic device may perform operation 1305.

In operation 1305, the electronic device may supply power bytransmitting a wireless power signal to the cover through an NFC scheme.At this time, the electronic device is in a state where the NFC is notconnected with the cover and may perform an NFC connection with anotherNFC device for a predetermined time according to the approach of theother NFC device. Accordingly, in operation 1307, the electronic devicemay identify the elapse of a preset standby time. That is, theelectronic device may identify that the preset standby time passes afterthe cover receives power and thus is driven (power is turned on). Theelectronic device may continuously perform operation 1307 when thepreset standby time does not pass based on a result of theidentification, and perform operation 1309 when the preset standby timepasses. At this time, according to various embodiments, the electronicdevice may identify whether another NFC device approaches beforereceiving a response signal in a state where a predetermined time doesnot pass. For example, when the NFC is connected with the cover throughthe coupling of the cover to the electronic device, the electronicdevice may communicate with an NFC device for payment, that is, anotherNFC device for a preset standby time as the NFC device approaches andthe NFC with the cover may wait for the preset standby time or beignored, so that the electronic device may perform NFC with the coverafter the preset standby time passes. In operation 1309, the electronicdevice may identify whether a response signal is received from thecover. The cover may wait for a preset standby time after power isturned on and then respond. Accordingly, even though the cover isconnected or the event is generated, the electronic device may connectthe NFC after a predetermined time instead of immediately connecting theNFC with the cover and search for another NFC device.

When the response signal is not received based on a result of theidentification of operation 1309, the electronic device may stopsupplying power to the cover in operation 1315.

When the response signal is received based on the result of theidentification of operation 1309, the electronic device may performoperation 1311.

In operation 1311, the electronic device may identify driving of thecover and perform an NFC connection procedure with the cover.

When the NFC is connected with the cover, the electronic device maytransmit event information to the cover and identify whether anoperation according to the event information is completed in operation1313.

When the operation of the cover is completed or after a predeterminedtime passes, the electronic device may release the NFC connection (turnoff NFC) and terminate the operation in operation 1315.

According to various embodiments, for example, when the NFC modulemaintains an off state and then periodically wakes up (on) when an eventis generated or in order to search for NFC, the electronic device mayperform the operation procedure of FIG. 13.

Hereinafter, a method of performing NFC in consideration of a case wherea wireless charging operation is performed based on the operation of theelectronic device according to various embodiments of the presentdisclosure described in FIGS. 8 to 13 will be described.

FIG. 14 illustrates an example of an operation procedure of theelectronic device according to various embodiments of the presentdisclosure.

Referring to FIG. 14, according to various embodiments of the presentdisclosure, in operation 1401, the electronic device (for example, theelectronic device 101 of FIG. 1, the electronic device 210 of FIG. 2, orthe electronic device 310 of FIG. 3) may activate a wireless chargingoperation and supply wireless power supplied through an antenna forwireless charging to a battery. In the wireless charging operation, theelectronic device may identify whether the cover (for example, the cover220 of FIG. 2, the cover 320 of FIG. 3, or the cover 410 of FIG. 4) isconnected to the housing.

The electronic device may recognize a coupling state of the cover, andperform a setting operation according to the coupling of the cover oridentify a set event to transmit/receive data through an NFC with thecover in a standby mode state. The electronic device may perform an NFCsignal search operation in the standby mode state. Accordingly, theelectronic device is currently in a state where the cover is connectedand may perform a standby mode operation in the standby mode state inoperation 1403. The standby mode operation may include at least one ofan operation of periodically searching for an NFC signal and anoperation of identifying whether an event (for example, an event of thecover) is generated.

The electronic device may identify whether the event is generated in thecover in operation 1405. When the event is not generated in the cover,the electronic device may continuously perform the wireless chargingoperation in operation 1401 and maintain the standby mode state.

When the event of the cover is generated based on the result of theidentification of operation 1405, the electronic device performsoperation 1407.

In operation 1407, when transmitting a wireless power signal to thecover, the electronic device may deactivate the wireless chargingoperation in order to prevent interference by wireless charging.Further, the electronic device may connect NFC with the cover and supplypower to the cover. When performing the NFC connection with the cover,the electronic device may perform a cover authentication based onauthentication information (for example, identification information)received from the cover.

In operation 1409, as the electronic device connects the NFC with thecover, the electronic device may transmit a wireless signal includingevent information on the generated event to the cover through the NFC.

In operation 1411, the electronic device may identify whether eventinformation is completely displayed on the cover. According to variousembodiments, the electronic device may use a tag signal and, when a tagsignal includes information indicating that the event information iscompletely displayed as the event information is completely displayed onthe cover, may identify that the operation of the cover is completed,that is, the event information is completely displayed. According tovarious embodiments, the electronic device may transmit the eventinformation to the cover and, when a predetermined time passes,determine that the operation of the cover is completed based on theevent information. The completion of the operation of the cover may beidentified according to various embodiments in addition to the aboveembodiments.

When the operation of the cover is completed based on a result of theidentification of operation 1411, the electronic device may continuouslyidentify whether the operation of the cover is completed and, when theoperation of the cover is completed, may perform operation 1413.

In operation 1413, as the operation of the cover is completed, theelectronic device may release the NFC connection with the cover, switchto the standby mode, and then perform operation 1401 again.

According to various embodiments of the present disclosure, whenelectronic device may not perform operations 1411 and 1413 andcompletely transmits the event information, the electronic deviceactivates the wireless charging operation again in operation 1401.

According to various embodiments of the present disclosure, theelectronic device may perform the cover mode operation through NFCidentically to the operation procedure of FIG. 14, but may notdeactivate the wireless charging operation and may lower wirelesscharging transmission power (Tx power) in operation 1407 when switchingto the cover mode or the event is generated. Further, when the operationis completed, the electronic device may not release the NFC, and mayincrease transmission power for wireless charging and perform thewireless charging operation in operation 1401 in a state where the NFCconnection is maintained.

A method of short range wireless communication in an electronic deviceaccording to one of various embodiments of the present disclosure mayinclude an operation of, when a cover is connected to the electronicdevice, determining generation of an event related to the cover, anoperation of, when the event is generated, an operation of supplyingpower to the cover through wireless communication, an operation of, whenthe cover is driven by the supplied power, transmitting eventinformation to the cover through the short range wireless communicationto display the information related to the generated event on the cover,and an operation of, when an operation of the cover according to theevent is completed, switching to a standby mode after releasing a shortrange wireless communication connection with the cover.

According to various embodiments of the present disclosure, theoperation of transmitting the event information to the cover may includean operation of not recognizing another external device while the eventinformation is transmitted to the cover.

According to various embodiments of the present disclosure, an operationin the standby mode may include an operation for searching for the coverduring a time interval of a search period corresponding to the coverand, when the time interval corresponding to the cover passes, searchingfor another external device corresponding to another time interval ofthe search period.

According to various embodiments of the present disclosure, theoperation of switching to the standby mode may include an operation oftransmitting the information related to the event to the cover for thetime interval of a search period corresponding to the cover, anoperation of, when the time interval corresponding to the cover set inaccordance with the cover passes and the other time interval isselected, determining that the operation of the cover is completed, andan operation of switching to the standby mode as the operation of thecover is completed.

According to various embodiments of the present disclosure, theoperation of switching to the standby mode may include an operation of,even when the connection of the short range wireless communication withthe cover is released, maintaining the power supplied to the cover for apreset time by using a routine different from a routine for connectingthe short range wireless communication.

According to various embodiments of the present disclosure, theoperation of switching to the standby mode may include an operation ofcalculating an operation time of the cover by analyzing the informationrelated to the event, an operation of, when the calculated operationtime passes, determining that the operation of the cover is completed,and an operation of switching to the standby mode as the operation ofthe cover is completed.

According to various embodiments of the present disclosure, theoperation of switching to the standby mode may include an operation of,when a tag signal including information indicating the completion of theoperation is received from the cover, determining that the operation ofthe cover is completed, and an operation of switching to the standbymode as the operation of the cover is completed.

According to various embodiments of the present disclosure, the methodmay further include an operation of, when the electronic device releasesthe connection of the short range wireless communication with the cover,switches to the standby mode, and performs an operation in the standbymode, if another external device is not recognized, maintaining thepower supplied to the cover for a preset standby time.

According to various embodiments of the present disclosure, the methodmay further include an operation of, when the cover is driven, receivingauthentication information of the cover and performing anauthentication.

FIG. 15 illustrates an example of a configuration of an electronicdevice according to various embodiments.

Referring to FIG. 15, according to various embodiments of the presentdisclosure, an electronic device 1510 (for example, the electronicdevice 101 of FIG. 1 or the electronic device 210 of FIG. 2) may belinked with an accessory device (hereinafter, referred to as a cover1520) through short range wireless communication.

The electronic device 1510 may include a processor 1511, a short rangewireless communication module 1512, and an antenna module 1513.

The processor 1511 (for example, similar or equal to the processor 120of FIG. 1 or the controller 211 of FIG. 2) may include an applicationmodule 1511 a, a framework including a short range wirelesscommunication service management module 1511 c (for example, an NFCservice manager) and a notification management module 1511 b, a HardwareAbstraction Layer (HAL) 1511 d, or a kernel 1511 e.

The application module 1511 a (for example, the application program ofFIG. 1) may execute various applications which can be executed in theelectronic device.

When an event related to the cover 1520 is generated, the notificationmanagement module 1511 b may transmit an event message includinginformation related to the generated event to the short range wirelesscommunication service management module 1511 c.

The short range wireless communication management module 1511 c mayreceive the event message and convert the received event message into aframe data for short range wireless communication (for example, NFC).Further, the short range wireless communication service managementmodule 1511 c may enable the short range wireless communication module1512 and transmit the converted frame data to the short range wirelesscommunication module 1512.

The HAL 1511 d (for example, the API 145 of FIG. 1) may be used like theAPI as a part of the operating system, and may be a set of routinesindependent details of hardware used for implementing an input/outputinterface, interrupt control, and multi-processor communication.

The kernel 1511 e (for example, the kernel 141 of FIG. 1) may control ormanage system resources (for example, the processor 1511, the shortrange wireless communication module 1512, and/or the antenna module1513) used for executing an operation or a function implemented in, forexample, different programs (for example, applications executed by theapplication module 1511 a). Further, the kernel 1511 e may perform atleast one of controlling, allocating, and collecting the systemresources.

The short range wireless communication module 1512 (for example, similaror equal to the short range wireless communication module 212 b of FIG.2) may include firmware 1512 a. The short range wireless communicationmodule 1512 may generate a wireless signal (an RF field or magneticflux) in the cover 1520 through the antenna module 1513 to be connectedto the cover 1520 in a magnetic induction type, and activate the antennamodule 1521 of the cover 1520 by the generated wireless signal. Further,the short range wireless communication module 1512 may transmit receivedshort range wireless communication frame data to the cover 1520 throughthe antenna module 1513. The antenna module 1513 (for example, similaror equal to the antenna module 212 a of FIG. 2) may be combined with theantenna module 1521 of the cover 1520 in a magnetic induction type(magnetic induction scheme) for wireless charging of the cover 1520 andalso perform the wireless charging of the cover 1520 through, forexample, a magnetic resonance scheme or an electromagnetic wave scheme.Further, the antenna module 1513 may include an additional circuit forwireless charging, for example, a coil loop, a resonant circuit, or arectifier.

According to various embodiments of the present disclosure, the cover1520 (for example, similar or equal to the cover 220 of FIG. 2) mayinclude the antenna module 1521, a short range wireless communicationmodule 1522, a control module 1523, a display module 1524, a memory1525, or a regulator 1526.

The antenna module 1521 (for example, similar or equal to the antennamodule 221 a of FIG. 2) may be combined with the electronic device 1510by the wireless signal (or magnetic field) generated by the antennamodule 1513 of the electronic device 1510 in, for example, a magneticinduction type.

The short range wireless communication module 1522 (for example, similaror equal to the short range wireless communication module 221 b of FIG.2) may store short range wireless communication frame data received fromthe electronic device 1510 through the antenna module 1521 in the memory1525.

The control module 1523 (for example, similar or equal to the controller222 of FIG. 2) may read the short range wireless communication framedata stored in the memory 1525 and transmit the read short rangewireless communication frame data to the display module 1524.

The display module 1524 (for example, similar or equal to the displayunit 224 of FIG. 2) may include a driver 1524 a and a display panel 1524b (for example, an ElectroPhoretic Display (EPD)). The driver 1524 a maymake a control to display the transmitted frame data by controlling avoltage applied to the display panel 1524 b.

The memory 1525 may store the frame data received from the electronicdevice 1510. Further, the memory 1525 may store a program or data usedfor a function operation of the cover 1520 according to variousembodiments. The memory 1525 may largely include a program area and adata area. The program area may store relevant information for drivingof the cover 1520 such as an Operating System (OS) that boots theelectronic device. The data area may store transmitted/received data orgenerated data according to various embodiments. Further, the memory1525 may include at least one storage medium of a flash memory, a harddisk, a multimedia card micro type memory (for example, an SD or XDmemory), a RAM, and a ROM.

The regulator 1526 may output a voltage applied by the magnetic fieldgenerated in the electronic device 1510 to be a voltage suitable foreach module.

Referring back to FIG. 15, when an event is generated, the notificationmanagement module 1511 b may generate an event message and transmit thegenerated event message to the short range wireless communicationservice management module 1511 c in operation 1501. Accordingly, inoperation 1503, the short range wireless communication servicemanagement module 1511 c may convert the received event message into,for example, an NFC type data format and transmit the converted NFCframe data to the short range wireless communication module 1512.

When the short range wireless communication module 1512 of the cover1520 receives the NFC frame data, the short range wireless communicationmodule 1512 may transmit the received NFC frame data to the cover 1520through the antenna module 1513 in operation 1505. In operation 1505,the short range wireless communication module 1522 included in the cover1520 may store the NFC frame data received through the antenna module1521 in the memory 1525.

In operation 1507, the control module 1523 of the cover 1520 may readdisplay information included in the frame data stored in the memory1525, transmit the display information to the display module 1524, anddisplay the display information on the display panel 1524 b (forexample, EPD).

FIG. 16 illustrates an example of a memory map according to variousembodiments of the present disclosure.

The memory 1525 of the cover 1520 illustrated in FIG. 15 may store theshort range wireless communication frame data received from theelectronic device. A memory map for storing the received short rangewireless communication frame data may include control information 1601containing information related to a state of a control module, updateddate/time information, or information on a frame sequence, and displayinformation 1603 as illustrated in FIG. 16. The display information 1603may be information related to the electronic device and the generatedevent and may include information which can be displayed on the displayof the cover.

FIG. 17 illustrates an operation procedure of an electronic deviceaccording to various embodiments of the present disclosure, and FIG. 18illustrates an example of a program related to short range wirelesscommunication of the electronic device according to various embodimentsof the present disclosure.

Referring to FIG. 17, according to various embodiments of the presentdisclosure, an electronic device 1701 (for example, the electronicdevice 1510 of FIG. 15) may identify whether an event related to a cover1703 is generated in operation 1711. The electronic device may performoperation 1713 when the event is generated based on a result of theidentification, and perform operation 1711 again when the event is notgenerated.

In operation 1713, the electronic device 1701 may start short rangewireless communication (for example, NFC). The electronic device 1701may start short range wireless communication through a programillustrated in FIG. 18.

In operation 1715, the electronic device 1701 may activate the shortrange wireless communication module (for example, the short rangewireless communication module 1512 of FIG. 15) and generate a wirelesssignal (RF field) (for example, magnetic flux) for wireless charging ofthe cover 1703.

In operation 1717, the electronic device 1701 may transmit the generatedwireless signal to the cover 1703.

In operation 1719, the cover 1703 may perform wireless charging by thereceived wireless signal and activate the short range wirelesscommunication module by applying wirelessly charged power to the shortrange wireless communication module (for example, the short rangewireless communication module 1522 of FIG. 15). Accordingly, the cover1703 may be combined with the electronic device in, for example, amagnetic induction type.

In operation 1721, the electronic device 1701 may transmit an initialcommand message to the cover 1703. The initial command message mayinclude information (REQ_PROTOCOL_S) that makes a request for a protocolfor communication with the cover 1703.

In operation 1723, the electronic device 1701 may receive a responsemessage (ACK_RPOTOCOL_S) according to the protocol request from thecover 1703.

In operation 1725, the electronic device 1701 may transmit a datatransfer message including event information according to the generationof the event to the cover 1703 by using the received protocol. The eventinformation may be the display information illustrated in FIG. 16 andmay be stored in the memory. Accordingly, the cover 1703 may display thereceived event information on the display.

In operation 1727, the electronic device 1701 may identify whether thedisplay information is completely transmitted. The electronic device1701 may perform operation 1729 when the event information is completelytransmitted based on a result of the identification, and continuouslyperform operation 1725 when the event information is not completelytransmitted.

In operation 1729, the electronic device 1701 may transmit an endcommand message (EXID_PROTOCOL_S) to the cover 1703.

In operation 1731, the electronic device 1701 may receive a responsemessage (ACK_EXIT_PROTOCOL_S) corresponding to the end command, and endthe NFC for transmitting the event information according to thegeneration of the event as the response message corresponding to the endcommand is received.

FIG. 19 illustrates a block diagram of an electronic device according tovarious embodiments.

Referring to FIG. 19, an electronic device 1901 may include, forexample, the entirety or a part of the electronic device 101 illustratedin FIG. 1. The electronic device 1901 may include at least oneApplication Processor (AP) 1910, a communication module 1920, aSubscriber Identification Module (SIM) 1924, a memory 1930, a sensormodule 1940, an input device 1950, a display 1960, an interface 1970, anaudio module 1980, a camera module 1991, a power management module 1995,a battery 1996, an indicator 1997, and a motor 1998.

The processor 1910 may control a plurality of hardware or softwareelements connected to the processor 1910 and may perform various dataprocessing and operations by driving an operating system or anapplication program. The processor 1910 may be embodied, for example, asa System on Chip (SoC). According to an embodiment, the processor 1910may further include a Graphic Processing Unit (GPU) and/or an imagesignal processor. The processor 1910 may also include at least some (forexample, a cellular module 1921) of the elements illustrated in FIG. 19.The processor 1910 may load, in a volatile memory, instructions or datareceived from at least one of the other elements (for example, anon-volatile memory) to process the loaded instructions or data, and maystore various types of data in the non-volatile memory.

The communication module 1920 may have a configuration equal or similarto that of the communication interface 170 of FIG. 1. The communicationmodule 1920 may include, for example, a cellular module 1921, a Wi-Fimodule 1923, a BT module 1925, a GNSS module 1927 (for example, a GPSmodule, a Glonass module, a Beidou module, or a Galileo module), an NFCmodule 1928, and a Radio Frequency (RF) module 1929.

The cellular module 1921 may provide, for example, a voice call, a videocall, a text message service, an Internet service, and the like througha communication network. According to an embodiment, the cellular module1921 may identify and authenticate the electronic device 1901 within acommunication network using the subscriber identification module 1924(for example, a SIM card). According to an embodiment, the cellularmodule 1921 may perform at least some of the functions that theprocessor 1910 may provide. According to an embodiment, the cellularmodule 1921 may include a Communication Processor (CP).

Each of the Wi-Fi module 1923, the BT module 1925, the GNSS module 1927,or the NFC module 1928 may include, for example, a processor forprocessing data that is transmitted and received through thecorresponding module. According to some embodiments, at least some (twoor more) of the cellular module 1921, the Wi-Fi module 1923, the BTmodule 1925, the GNSS module 1927, and the NFC module 1928 may beincluded in one Integrated Chip (IC) or IC package.

The RF module 1929, for example, may transmit/receive a communicationsignal (for example, an RF signal). The RF module 1929 may include, forexample, a transceiver, a Power Amplifier Module (PAM), a frequencyfilter, a Low Noise Amplifier (LNA), an antenna, and the like. Accordingto another embodiment, at least one of the cellular module 1921, theWi-Fi module 1923, the BT module 1925, the GNSS module 1927, and the NFCmodule 1928 may transmit/receive an RF signal through a separate RFmodule.

The subscriber identification module 1924 may include, for example, acard that includes a subscriber identity module and/or an embedded SIM,and may contain unique identification information (for example, anIntegrated Circuit Card Identifier (ICCID)) or subscriber information(for example, an International Mobile Subscriber Identity (IMSI)).

The memory 1930 (for example, the memory 130) may include, for example,an internal memory 1932 or an external memory 1934. The internal memory1932 may include at least one of, for example, a volatile memory (forexample, a Dynamic Random Access Memory (DRAM), a Static RAM (SRAM), aSynchronous Dynamic RAM (SDRAM), and the like) and a non-volatile memory(for example, a One Time Programmable Read Only Memory (OTPROM), aProgrammable ROM (PROM), an Erasable and Programmable ROM (EPROM), anElectrically Erasable and Programmable ROM (EEPROM), a mask ROM, a flashROM, a flash memory (for example, a NAND flash memory or a NOR flashmemory), a hard disc drive, a Solid State Drive (SSD), and the like).

The external memory 1934 may further include a flash drive, for example,a Compact Flash (CF), a Secure Digital (SD), a Micro Secure Digital(Micro-SD), a Mini Secure Digital (Mini-SD), an eXtreme Digital (xD), aMulti-Media Card (MMC), a memory stick, and the like. The externalmemory 1934 may be functionally and/or physically connected to theelectronic device 1901 through various interfaces.

The sensor module 1940 may, for example, measure a physical quantity ordetect the operating state of the electronic device 1901 and may convertthe measured or detected information into an electrical signal. Thesensor module 1940 may include, for example, at least one of a gesturesensor 1940A, a gyro sensor 1940B, an atmospheric pressure sensor 1940C,a magnetic sensor 1940D, an acceleration sensor 1940E, a grip sensor1940F, a proximity sensor 1940G, a color sensor 1940H (for example, ared, green, blue (RGB) sensor), a biometric sensor 1940I, atemperature/humidity sensor 1940J, a light sensor 1940K, and aultraviolet (UV) sensor 1940M. Additionally or alternatively, the sensormodule 1940 may include, for example, an E-nose sensor, anelectromyography (EMG) sensor, an electroencephalogram (EEG) sensor, anelectrocardiogram (ECG) sensor, an Infrared (IR) sensor, an iris sensor,and/or a fingerprint sensor. The sensor module 1940 may further includea control circuit for controlling one or more sensors included therein.In some embodiments, the electronic device 1901 may further include aprocessor configured to control the sensor module 1940 as a part of, orseparately from, the processor 1910, and may control the sensor module1940 while the processor 1910 is in a sleep state.

The input device 1950 may include, for example, a touch panel 1952, a(digital) pen sensor 1954, a key 1956, or an ultrasonic input device1958. The touch panel 1952 may use, for example, at least one of acapacitive type, a resistive type, an infrared type, and an ultrasonictype. Furthermore, the touch panel 1952 may further include a controlcircuit. The touch panel 1952 may further include a tactile layer toprovide a tactile reaction to a user.

The (digital) pen sensor 1954 may include, for example, a recognitionsheet that is a part of, or separate from, the touch panel. The key 1956may include, for example, a physical button, an optical key, or akeypad. The ultrasonic input device 1958 may detect ultrasonic waves,which are generated by an input tool, through a microphone (for example,a microphone 1988) to identify data corresponding to the detectedultrasonic waves.

The display 1960 (for example, the display 160) may include a panel1962, a hologram device 1964 or a projector 1966. The panel 1962 mayhave a configuration that is the same as, or similar to, that of thedisplay 160 illustrated in FIG. 1. The panel 1962 may be implemented tobe, for example, flexible, transparent, or wearable. The panel 1962,together with the touch panel 1952, may be implemented as one module.The hologram device 1964 may show a three dimensional image in the airby using an interference of light. The projector 1966 may display animage by projecting light onto a screen. The screen may be located, forexample, in the interior of, or on the exterior of, the electronicdevice 1901. According to an embodiment, the display 1960 may furtherinclude a control circuit for controlling the panel 1962, the hologramdevice 1964, or the projector 1966.

The interface 1970 may include, for example, a High-DefinitionMultimedia Interface (HDMI) 1972, a Universal Serial Bus (USB) 1974, anoptical interface 1976, or a D-subminiature (D-sub) 1978. The interface1970 may be included, for example, in the communication interface 170illustrated in FIG. 1. Additionally or alternatively, the interface 1970may include, for example, a Mobile High-definition Link (MHL) interface,a Secure Digital (SD) card/Multi-Media Card (MMC) interface, or anInfrared Data Association (IrDA) standard interface.

The audio module 1980 may convert, for example, a sound into anelectrical signal, and vice versa. At least some elements of the audiomodule 1980 may be included, for example, in the input/output interface150 illustrated in FIG. 1. The audio module 1980 may process soundinformation that is input or output through, for example, a speaker1982, a receiver 1984, earphones 1986, the microphone 1988, and thelike.

The camera module 1991 is a device that can photograph a still image anda moving image. According to an embodiment, the camera module 1991 mayinclude one or more image sensors (for example, a front sensor or a rearsensor), a lens, an Image Signal Processor (ISP), or a flash (forexample, an LED or xenon lamp).

The power management module 1995 may manage, for example, the power ofthe electronic device 1901. According to an embodiment, the powermanagement module 1995 may include a Power Management Integrated Circuit(PMIC), a charger Integrated Circuit (IC), or a battery or fuel gauge.The PMIC may have a wired and/or wireless charging method. Examples ofthe wireless charging method may include a magnetic resonance method, amagnetic induction method, an electromagnetic wave method, and the like.Additional circuits (for example, a coil loop, a resonance circuit, arectifier, and the like) for wireless charging may be further included.The battery gauge may measure, for example, the residual amount of thebattery 1996 and a voltage, current, or temperature while charging. Thebattery 1996 may include, for example, a rechargeable battery and/or asolar battery.

The indicator 1997 may indicate a particular state (for example, abooting state, a message state, a charging state, and the like) of theelectronic device 1901 or a part (for example, the processor 1910)thereof. The motor 1998 may convert an electrical signal into amechanical vibration and may generate a vibration, a haptic effect, andthe like. Although not illustrated, the electronic device 1901 mayinclude a processing unit (for example, a GPU) for supporting mobile TV.The processing unit for supporting the mobile TV may process media dataaccording to a standard, such as Digital Multimedia Broadcasting (DMB),Digital Video Broadcasting (DVB), MediaFlo™, and the like.

Each of the above-described component elements of hardware according tothe present disclosure may be configured with one or more components,and the names of the corresponding component elements may vary based onthe type of electronic device. The electronic device according tovarious embodiments of the present disclosure may include at least oneof the aforementioned elements. Some elements may be omitted or otheradditional elements may be further included in the electronic device.Also, some of the hardware components according to various embodimentsmay be combined into one entity, which may perform functions identicalto those of the relevant components before the combination. FIG. 20illustrates a block diagram of a program module according to variousembodiments. According to an embodiment, the program module 2010 (forexample, the program 140) may include an Operating System (OS) thatcontrols resources relating to an electronic device (for example, theelectronic device 101) and/or various applications (for example, theapplication programs 147) that are executed in the operating system. Theoperating system may be, for example, Android, iOS, Windows, Symbian,Tizen, Bada, and the like

The program module 2010 may include a kernel 2020, middleware 2030, anApplication Programming Interface (API) 2060, and/or applications 2070.At least a part of the program module 2010 may be preloaded on theelectronic device, or may be downloaded from an external electronicdevice (for example, the electronic device 102 or 104 or the server106).

The kernel 2020 (for example, the kernel 141 of FIG. 1 or the kernel1511 e of FIG. 15) may include, for example, a system resource manager2021 and/or a device driver 2023. The system resource manager 2021 maycontrol, allocate, or retrieve system resources. According to anembodiment, the system resource manager 2021 may include a processmanager, a memory manager, or a file system manager. The device driver2023 may include, for example, a display driver, a camera driver, aBluetooth™ driver, a shared memory driver, a USB driver, a keypaddriver, a Wi-Fi driver, an audio driver, or an Inter-ProcessCommunication (IPC) driver.

The middleware 2030 may provide a function used by the applications 2070in common or provide various functions to the applications 2070 throughthe API 2060 so that the applications 2070 can efficiently use limitedsystem resources within the electronic device. According to anembodiment, the middleware 2030 (for example, the middleware 143) mayinclude, for example, at least one of a runtime library 2035, anapplication manager 2041, a window manager 2042, a multimedia manager2043, a resource manager 2044, a power manager 2045, a database manager2046, a package manager 2047, a connectivity manager 2048, anotification manager 2049, a location manager 2050, a graphic manager2051, and a security manager 2052.

The runtime library 2035 may include, for example, a library module thata compiler uses in order to add a new function through a programminglanguage while the applications 2070 are being executed. The runtimelibrary 2035 may perform input/output management, memory management, thefunctionality for an arithmetic function, and the like.

The application manager 2041 may manage, for example, the life cycle ofat least one of the applications 2070. The window manager 2042 maymanage Graphical User Interface (GUI) resources used on a screen. Themultimedia manager 2043 may determine formats used to reproduce variousmedia files and may encode or decode a media file using a coder/decoder(codec) appropriate for the corresponding format. The resource manager2044 may manage resources, such as the source code, the memory, thestorage space, and the like of at least one of the applications 2070.

The power manager 2045 may operate together with a Basic Input/OutputSystem (BIOS) to manage a battery or power and may provide powerinformation used for the operation of the electronic device. Thedatabase manager 2046 may generate, search for, and/or change a databaseto be used by at least one of the applications 2070. The package manager2047 may manage the installation or update of an application that isdistributed in the form of a package file.

The connectivity manager 2048 may manage a wireless connection, such asWi-Fi, Bluetooth™, and the like. The notification manager 2049 maydisplay or notify of an event, such as an arrival message, anappointment, a proximity notification, and the like, in such a mannerthat a user is not disturbed. The location manager 2050 may manage thelocation information of the electronic device. The graphic manager 2051may manage a graphic effect to be provided to a user and a userinterface relating to the graphic effect. The security manager 2052 mayprovide various security functions used for system security, userauthentication, and the like. According to an embodiment, in a casewhere the electronic device (for example, the electronic device 101) hasa telephone call function, the middleware 2030 may further include atelephony manager for managing a voice or video call function of theelectronic device.

The middleware 2030 may include a middleware module that forms acombination of various functions of the above-described elements. Themiddleware 2030 may provide specialized modules according to the typesof operating systems in order to provide differentiated functions.Furthermore, the middleware 2030 may dynamically remove some of theexisting elements, or may add new elements.

The API 2060 (for example, the API 145) is, for example, a set of APIprogramming functions, and may be provided with different configurationsaccording to operating systems. For example, in the case of Android oriOS, one API set may be provided for each platform, and in the case ofTizen, two or more API sets may be provided for each platform.

The applications 2070 (for example, the application programs 147) mayinclude one or more applications that can perform functions, forexample, home 2071, dialer 2072, SMS/MMS 2073, Instant Message (IM)2074, browser 2075, camera 2076, alarm 2077, contacts 2078, voice dial2079, e-mail 2080, calendar 2081, media player 2082, album 2083, clock2084, health care (for example, measuring exercise quantity or bloodsugar), and environment information (for example, atmospheric pressure,humidity, temperature information, and the like).

According to an embodiment, the applications 2070 may include anapplication (hereinafter, referred to as an “information exchangeapplication” for convenience of description) that supports informationexchange between the electronic device (for example, the electronicdevice 101) and an external electronic device (for example, theelectronic device 102 or 104). The information exchange application mayinclude, for example, a notification relay application for transferringspecific information to an external electronic device or a devicemanagement application for managing an external electronic device.

For example, the notification relay application may include a functionof delivering, to the external electronic device (for example, theelectronic device 102 or 104), notification information generated byother applications (for example, an SMS/MMS application, an emailapplication, a health care application, an environmental informationapplication, and the like) of the electronic device. Furthermore, thenotification relay application may, for example, receive notificationinformation from the external electronic device and may provide thereceived notification information to a user.

The device management application may manage (for example, install,delete, or update), for example, at least one function of an externalelectronic device (for example, the electronic device 102 or 104) thatcommunicates with the electronic device (for example, a function ofturning on/off the external electronic device itself (or some componentsthereof) or a function of adjusting the brightness (or resolution) of adisplay), applications that operate in the external electronic device,or services (for example, a call service, a message service, and thelike) that are provided by the external electronic device.

According to an embodiment, the applications 2070 may includeapplications (for example, a health care application of a mobile medicalappliance, and the like) that are specified according to attributes ofan external electronic device (for example, the electronic device 102 or104). According to an embodiment, the applications 2070 may includeapplications that are received from an external electronic device (forexample, the server 106, or the electronic device 102 or 104). Accordingto an embodiment, the applications 2070 may include preloadedapplications or third-party applications that can be downloaded from aserver. Names of the elements of the program module 2010, according tothe above-described embodiments of the present disclosure, may changedepending on the type of OS.

According to various embodiments of the present disclosure, at leastsome of the program module 2010 may be implemented in software,firmware, hardware, or a combination of two or more thereof. At leastsome of the program module 2010 may be implemented (for example,executed) by, for example, the processor (for example, the processor1910). At least some of the program module 2010 may include, forexample, a module, a program, a routine, a set of instructions, and/or aprocess for performing one or more functions.

The term “module” as used herein may, for example, mean a unit includingone of hardware, software, and firmware or a combination of two or moreof them. The “module” may be interchangeably used with, for example, theterm “unit”, “logic”, “logical block”, “component”, or “circuit”. The“module” may be a minimum unit of an integrated component element or apart thereof. The “module” may be a minimum unit for performing one ormore functions or a part thereof. The “module” may be mechanically orelectronically implemented. For example, the “module” according to thepresent disclosure may include at least one of an Application-SpecificIntegrated Circuit (ASIC) chip, a Field-Programmable Gate Arrays (FPGA),and a programmable-logic device for performing operations which has beenknown or are to be developed hereinafter.

According to various embodiments, at least some of the devices (forexample, modules or functions thereof) or the method (for example,operations) according to the present disclosure may be implemented by acommand stored in a computer-readable storage medium in a programmingmodule form. The instruction, when executed by a processor (e.g., theprocessor 120), may cause the one or more processors to execute thefunction corresponding to the instruction. The computer-readable storagemedium may be, for example, the memory 130.

The computer readable recoding medium may include a hard disk, a floppydisk, magnetic media (e.g., a magnetic tape), optical media (e.g., aCompact Disc Read Only Memory (CD-ROM) and a Digital Versatile Disc(DVD)), magneto-optical media (e.g., a floptical disk), a hardwaredevice (e.g., a Read Only Memory (ROM), a Random Access Memory (RAM), aflash memory), and the like. In addition, the program instructions mayinclude high class language codes, which can be executed in a computerby using an interpreter, as well as machine codes made by a compiler.The aforementioned hardware device may be configured to operate as oneor more software modules in order to perform the operation of thepresent disclosure, and vice versa.

The programming module according to the present disclosure may includeone or more of the aforementioned components or may further includeother additional components, or some of the aforementioned componentsmay be omitted. Operations executed by a module, a programming module,or other component elements according to various embodiments of thepresent disclosure may be executed sequentially, in parallel,repeatedly, or in a heuristic manner Further, some operations may beexecuted according to another order or may be omitted, or otheroperations may be added. According to various embodiments, acomputer-readable recording medium having a program recorded therein tobe executed on a computer is provided. The program may includeinstructions that, when executed by a processor, cause the processor toperform an operation of, when a cover is connected to the electronicdevice, an operation of determining generation of an event related tothe cover; an operation of, when the event is generated, supplying powerto the cover through wireless communication; an operation of, when thecover is driven by the supplied power, an operation of transmittingevent information to the cover through the short range wirelesscommunication to display the information related to the generated eventon the cover; and an operation of, when an operation of the coveraccording to the event is completed, switching to a standby mode afterreleasing a short range wireless communication connection with thecover.

Although the present disclosure has been described with an exemplaryembodiment, various changes and modifications may be suggested to oneskilled in the art. It is intended that the present disclosure encompasssuch changes and modifications as fall within the scope of the appendedclaims.

What is claimed is:
 1. An electronic device comprising: a wirelesscommunication circuit; and at least one processor, wherein the at leastone processor is configured to: identify that an external electronicdevice is connected to the electronic device, identify whether an eventrelated to the external electronic device occurs, based on identifyingthat the event related to the external electronic device occurs, controlto supply power to the external electronic device, and transmit, to theexternal electronic device, information associated with the event fordisplay by using the wireless communication circuit, while the power issupplied to the external electronic device.
 2. The electronic device ofclaim 1, wherein the at least one processor is further configured to:generate information according to a received phone call or a receivedmessage; and identify that the event related to the external electronicdevice occurs based on the generated information.
 3. The electronicdevice of claim 1, wherein the at least one processor is furtherconfigured to: detect an execution of an application for operating theexternal electronic device; and identify that the event related to theexternal electronic device occurs based on the detected execution of theapplication.
 4. The electronic device of claim 1, further comprising aconnector, and wherein the at least one processor is further configuredto: identify the external electronic device that is connected to theelectronic device based on a predefined parameter; and determine thatthe event related to the external electronic device occurs in responseto identifying the external electronic device.
 5. The electronic deviceof claim 1, wherein the information associated with the event isconfigured to be displayed on a display of the external electronicdevice.
 6. The electronic device of claim 1, further comprising abattery, and wherein the at least one processor is further configured tocontrol to receive wireless power for charging the battery from anotherexternal electronic device.
 7. The electronic device of claim 6, furthercomprising: a first antenna for receiving the wireless power forcharging the battery from the other external electronic device; and asecond antenna for wirelessly communicating with the external electronicdevice.
 8. The electronic device of claim 1, wherein the at least oneprocessor is configured to: identify whether the external electronicdevice is driven according to the supplied power, and based onidentifying that the external electronic device is driven, transmit, tothe external electronic device, the information associated with theevent by using the wireless communication circuit.
 9. The electronicdevice of claim 1, wherein the at least one processor is furtherconfigured to control to supply the power for a preset time period aftertransmitting the information associated with the event to the externalelectronic device.
 10. The electronic device of claim 1, furthercomprising a display positioned on a front surface of the electronicdevice, wherein a first part of the external electronic device isconfigured to cover the display of the electronic device when theexternal electronic device is in a closed state and expose the displayof the electronic device when the external electronic device is in anopen state and a second part of the external electronic device isconfigured to cover a back surface of the electronic device, wherein aninner surface of the first part is configured to face the display of theelectronic device, wherein a display of the external electronic deviceis positioned on an outer surface of the first part, and wherein thesecond part includes a wireless communication circuit configured tocommunicate with the wireless communication circuit of the electronicdevice.
 11. An electronic device comprising: a wireless communicationcircuit; and at least one processor, wherein the at least one processoris configured to: identify that an external electronic device isconnected to the electronic device, identify whether an event forexecuting an application occurs, based on identifying that the event forexecuting the application occurs on the electronic device, control tosupply power to the external electronic device, and transmit informationassociated with the event for display by using the wirelesscommunication circuit while the power is supplied to the externalelectronic device.
 12. The electronic device of claim 11, wherein theinformation associated with the event is configured to be displayed on adisplay of the external electronic device.
 13. The electronic device ofclaim 11, further comprising a battery, and wherein the at least oneprocessor is further configured to control to receive wireless power forcharging the battery from another external electronic device.
 14. Theelectronic device of claim 13, further comprising: a first antenna forreceiving the wireless power for charging the battery from the otherexternal electronic device; and a second antenna for wirelesslycommunicating with the external electronic device.
 15. The electronicdevice of claim 11, wherein the at least one processor is furtherconfigured to control to supply the power for a preset time period aftertransmitting the information associated with the event.
 16. Theelectronic device of claim 11, wherein the at least one processor isfurther configured to: based on identifying that the external electronicdevice is connected to the electronic device, establish a communicationconnection with the external electronic device by using the wirelesscommunication circuit.
 17. The electronic device of claim 11, furthercomprising a display positioned on a front surface of the electronicdevice, wherein a first part of the external electronic device isconfigured to cover the display of the electronic device when theexternal electronic device is in a closed state and expose the displayof the electronic device when the external electronic device is in anopen state and a second part of the external electronic device isconfigured to cover a back surface of the electronic device, wherein aninner surface of the first part is configured to face the display of theelectronic device, wherein a display of the external electronic deviceis positioned on an outer surface of the first part, and wherein thesecond part includes a wireless communication circuit configured tocommunicate with the wireless communication circuit of the electronicdevice.
 18. The electronic device of claim 11, wherein the at least oneprocessor is further configured to control to supply the power to theexternal electronic device for a predetermined time after the eventoccurs.
 19. The electronic device of claim 11, wherein the wirelesscommunication circuit is configured to communicate with the externalelectronic device that is connected to the electronic device throughshort range wireless communication.
 20. The electronic device of claim11, wherein the at least one processor is further configured to: receivea tag from the external electronic device, and based on receiving thetag, release the connection with the external electronic device.